Celebrating Ralph Twitchell, Architect: With and Beyond Paul Rudolph

The plan of the Twitchell Residence: Ralph Twitchell’s residence in Sarasota, Florida, a design of 1941. It is Paul Rudolph’s second built design, and his first in association with the senior architect. What might one learn (or speculate about) from studying such a floor plan?

Ralph Spencer Twitchell, Architect (1890-1978)

RALPH TWITCHELL

It is the birthday of Ralph Spencer Twitchell (July 27, 1890 – January 30, 1978)—and we take this moment to celebrate this architect, one who not only played a key part in the life and career of Paul Rudolph, but who contributed to the Sarasota community.

TWITCHELL AND RUDOLPH

Even to those who have a deep interest in the history of Modern architecture, Ralph Twitchell is not known much beyond a brief summary that peppers many biographies of Rudolph. What one often reads is that the senior architect gave Rudolph his start (Twitchell was nearly 3 decades older than Rudolph), bringing the young designer into his practice, and (and, as soon as Rudolph obtained his architectural license, taking him into partnership).

To this alliance, Twitchell is seen as having contributed an established position in the Sarasota community, a track record of successful projects, a way with clients, and a firm knowledge of construction—and Rudolph was the ultra-talented (and hardworking and prolific) youthful design genius. A productive period ensued, with many houses built and proposed—some of them among Paul Rudolph’s most striking designs, including: the widely-published Healy (“Cocoon”) House; the innovative Knott Residence; and the proposal for a complex of houses for the Revere Development (which showed Rudolph working skillfully within the vocabulary of Mies van der Rohe's “courtyard house” design experiments).

The Knott Residence, proposed for Yankeetown, Florida

The Healy (“Cocoon”) House, built in Sarasota, Florida

The Revere Development, proposed for Siesta Key, Florida

But, after about a half-decade of intense and successful work, Rudolph splits with Twitchell—apparently after a disagreement. Rudolph went on to found his own firm, attaining amazing success in the coming decades—both professionally and artistically.

ARCHETYPAL STORIES

So the impression one gets, from this highly condensed duo-biographical sketch, is that Twitchell provided the assets of the establishment: boring but practical and useful; whereas Rudolph injected the artistically energetic ingredients which really made their work interesting. Then, ultimately, it is the young genius who rebels and pursues his own path: an adventurous road to great achievement. From then on, we hear no more of Twitchell.

It is an appealing story, with its depiction of the talented and irrepressible “rebel”—and one wouldn’t have to search very hard into the work of Joseph Campbell to find, within the world of comparative mythology, that this is tale that can be found in all ages and cultures across the globe: the archetypal “Hero’s Journey”.

DEEPER AND BROADER

But, if there’s one thing that historians learn, it is that no story is simple—and, if one has the interest to dig, and to challenge the received wisdom, all stories keep opening up new questions and possibilities. The honest historian always wants—needs—to go deeper into the evidence, and look ever more broadly at what might have influenced/created a situation.

So let’s see if we can open-up (or as historians say, “unpack”) the above story. To do that, let’s consider the Twitchell Residence: how much is Twitchell and how much is Rudolph? We’ll probably never know the exact ratio and nature of their contributions to the design, but we can consider some of the factors that might have affected its planning and form. Items to consider include:

• This is Twitchell’s personal home—and it is a natural feeling to be particularly focused on the design of one’s own home—and that’s especially true for architects! No matter how talented his young associate (Rudolph), is it plausible that a senior architect would hand-over the full responsibility for the architecture of his own home to someone else? Or is it more likely that he had important and key input into the design?

• The building was completed in 1941. War is raging in Europe and Asia, and tremors of possible US involvement in the war—and a general national nervousness—are pervasive. Twitchell was old-enough to recall what happened during the previous World War: labor and materials had been in short-supply, and most construction was put on-hold for the duration of the fighting. Twitchell might have wanted to get his house built while it was still possible to do so—and he’d have only one chance to get it right. So—for this one chance—would he completely abdicate design responsibly for that to another?

• There are many striking similarities between the Living-Dining area of the Twitchell Residence, and the famous drafting room at Frank Lloyd Wright’s Taliesin West—too many to be just a coincidence [See comparison photos, below.]

• There are other Wrightian aspects of the Twitchell House: the compactness of the bedrooms (Wright thought bedrooms should be small, almost cabin-like, and primarily for sleeping—and that residents would/should spend their time outside of them); Dining and Living Room Areas that merge into each-other; the primacy of a solid, prominent fireplace wall, as one of the defining elements of the Living Room; and the set of visually solid piers which define the parking area, which create a strong entry sequence to the house.

• We know that Paul Rudolph was an ardent admirer of Wright—and that visiting a Wright home, at an early age, had been a decisive moment in Rudolph’s development. Rudolph’s devotion to Wright is something he’d acknowledge for his whole life. But—

The drafting room of Frank Lloyd Wright’s Taliesin West —and iconic part of the Taliesin complex. Key features—the ones that create it’s overall character are: the open, uninterrupted space; the inclined ceiling; the expressed structure inclined beams across that ceiling: the directionality of the space, with one side opening to the exterior; the V-shaped, angled columns, at the open side of the room, which support the beams above.

Both Twitchell and Paul Rudolph were aware of Wright’s work—and, from a young age, Rudolph was especially influenced by Wright’s designs (something he’d warmly acknowledge all his life). Above is the main living space of the Twitchell Residence: one is looking South into the Living Room, with the Dining area in the foreground. Was it Rudolph who urged that it follow so many of the features of Wright’s Taliesin drafting room?

• But Twitchell could equally have been aware of Wright. Frank Lloyd Wright was a relentless self-promoter and had been widely published for decades—so it would be impossible for any architect, of Twitchell’s era and age, to be ignorant of Wright. Further, given Wright’s decades of fame, Twitchell’s awareness of Wright’s work would have started well before he met Paul Rudolph.

• But, beyond familiarity, there’s a strong affinity between Wright’s work and another Twitchell project: one of his largest works, the Lido Beach Casino in Sarasota. The complex—an extensive structure with multiple parts and functions—was built in 1940, and probably planned in the previous year(s)—well before Rudolph was engaged by Twitchell. It was a venue for beach and pool swimming, dining, dancing, a nightclub, and shopping—and events of all kinds (beauty contests, swim meets, school and social) were held there.

• The project bears a striking similarity to Wright’s Midway Gardens: excluding swimming, both the Lido Beach Casino and Midway are of similar scale, encompass nearly matching programs, and were aimed at the same type of audience.

Frank Lloyd Wright’s Midway Gardens in Chicago

Ralph Twitchell’s Lido Beach Casino in Sarasota

• The two entertainment complexes share a “parti" (their basic architectural organization): both having a large, central, open space—which is enclosed and defined by structures for various functions, and which is anchored at one side by a taller main building.

Beachside view of the Lido Beach Casino—a view from circa 1956—showing the main, central structure that visually anchored the complex.

• Other aspects of the building display possible Wrightian influences, such as—-

• The pronounced horizontality of the composition—both overall, and in its elements: the low, hipped roofs of the two towers (and in the linear detail at their mid-areas), and the disc-shaped cantilevered roof at the center of the beach elevation

• The detailing of the columns

• The use of block—and prominently including a pattern of penetrations in the block masonry walls

• The creation of deep colonnades—not only offering protection from the sun, but also creating dramatically shadowed areas

• The almost Mayan “introverted” feel of the building—like Wright’s Hollyhock House, due to the solidity of the massing and of individual elements like the columns

• The display/celebration of structure—as in the rafters over the beachside elevation’s central roof, the hefty piers supporting that roof, and the line of columns

• Altogether, one cannot ignore the possible Wright influences in this Twitchell-before-Rudolph project.

• So the question becomes: If we see Wrightian influences here, could Twitchell also have brought such design input into his work with Rudolph?

WITHER RALPH TWITCHELL?

In the standard history of their Twitchell and Rudolph’s partnership, Twitchell is known as the “business partner” -or- the “public face” (who charmed clients) -or- “the [construction] site guy”. But though he was all those things (and, apparently, excelled in those roles), perhaps he was more than that. He had an extensive career both before and after his partnership with Rudolph, and—as looked-at in the above two cases (his 1941 Residence, and the Lido Beach Casino) there are reasons to contend that he might have had more of a design talent and sensibility than he’s usually given credit for. The import of this is: his input into projects in the Twitchell and Rudolph partnership might possibly have been stronger than previously assumed.

THE HISTORIAN’S PERSPECTIVE

To be fair to both sides, we should mention that we do have Paul Rudolph’s counter-testimony to such an idea (Rudolph said that whatever was good and interesting in their work was attributed to himself alone!). We don’t mean to assail the integrity of Rudolph’s claim—but part of the work of history is to question such self-contained, categorical statements. “Meta-narratives”—the big, central stories by which we’ve long understood the course of events (at world, local, and personal scales)—are never quite inclusive-enough of all the facts: there always dissonant evidence (“out-of-place artifacts”), clues, even “hints” that stubbornly won’t go away, and a real historian will never ignore them. So the question of Twitchell’s ability and input as a designer is an open one.

CELEBRATING TWITCHELL

So today,. on his birthday, we give Twitchell some renewed attention and consideration—”giving him a little love” that he’s rarely received in the soundbite assessment that he often gets.

A talented, energetic, and enterprising figure—and one who may have had more focus on design than usually acknowledged—it is worth celebrating this important architect: RALPH SPENCER TWITCHELL

Ralph Twitchell (center) consulting with builders on-site. What’s intriguing about this image is that it shows the Healy (“Cocoon”) House under construction—and one can see the catenary metal straps, upon which house’s curved roof (its most pronounced feature) was to be suspended. Healy was the most famous building completed during Twitchell and Rudolph’s partnership, but after Rudolph departed, Twitchell continued to practice until at least the mid-1960’s, and lived until 1978—long enough to see his former partner, Rudolph, achieve stratospheric success and fame. One wonders what Twitchell thought of that: was he jealous, bitter, tranquil—or glad that he’d fostered such a profound and prodigious talent as Paul Rudolph?

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IMAGE CREDITS

NOTES:

The Paul Rudolph Heritage Foundation gratefully thanks all the individuals and organizations whose images are used in this non-profit scholarly and educational project.

The credits are shown when known to us, and are to the best of our knowledge, but the origin and connected rights of many images (especially vintage photos and other vintage materials) are often difficult determine. In all cases the materials are used in-good faith, and in fair use, in our non-profit, scholarly, and educational efforts. If any use, credits, or rights need to be amended or changed, please let us know.

When/If Wikimedia Commons links are provided, they are linked to the information page for that particular image. Information about the rights for the use of each of those images, as well as technical information on the images, can be found on those individual pages.

CREDITS, FROM TOP-TO-BOTTOM and LEFT-TO-RIGHT:

Floor plan of the Twitchell Residence: © The Estate of Paul Rudolph, The Paul Rudolph Heritage Foundation; Photo portrait of Ralph Twitchell: by Joseph Steinmetz, from the State Library & Archives of Florida, via Wikimedia Commons; Perspective renderings by Paul Rudolph of the Knott Residence, Healy (“Cocoon”) House, and the Revere Development: © The Estate of Paul Rudolph, The Paul Rudolph Heritage Foundation; Taliesin West drafting room: photo by Steven C. Price, via Wikimedia Commons [Note: to help facilitate comparisons between this space and the Twitchell Residence Living Room (the next picture), this photo of the drafting room has been flipped, and color was removed.]; Ralph Twitchell Residence Living Room: by Joseph Steinmetz, from the State Library & Archives of Florida; Midway Gardens: vintage post card. circa 1915, via Wikimedia Commons; Beachside view of Lido Beach Casino, circa 1956: photo, circa 1956, via Wikimedia Commons; Post cards and photos of Lido Beach Casino: vintage images; Photo portrait of Ralph Twitchell at Healy construction site: by Joseph Steinmetz, from the State Library & Archives of Florida, via Wikimedia Commons

Rudolph's BIGGS RESIDENCE: Demolition (but No Permission?)

The Biggs Residence—a Rudolph design of 1955-1956, in Delray Beach, Florida—has just now been demolished. It is pictured here from the time it received a Merit Award in the 1959 Homes for Better Living Awards sponsored by the AIA.

AN ACCELERATING RATE OF DESTRUCTION

The Burroughs Wellcome headquarters building and research center, in Durham, North Carolina—one of Paul Rudolph’s most iconic designs, and a structure of historic importance—has been turned into demolition debris.

In the last several years, it seems like we’ve experienced an acceleration in the destruction and threats to our architectural heritage—and this has hit the works of Paul Rudolph especially hard. Several important Rudolph buildings are now threatened, or have been outright destroyed or removed—and they are some of Paul Rudolph’s profoundest, key works:

• Burroughs Wellcome: DEMOLISHED

• Walker Guest House: REMOVED—taken apart, and moved to an unknown location

• Orange County Government Center: DEMOLISHED—partially, with the balance changed beyond recognition

• Niagara Falls Main Library: THREATENED

• Boston Government Service Center: THREATENED

• Milam and Rudolph Residences: SOLD -or- ON THE MARKET—with no assurances that new owners won’t demolish or change them beyond recognition

The Paul Rudolph Heritage Foundation advocates for the preservation and proper maintenance of buildings designed by Rudolph—and is available to consult with owners about sensitive adaptive reuse, renovation, and redevelopment of Rudolph buildings (especially as an alternative to demolition!)

But, vigilant as we are, sometimes we’re taken aback by news of a precipitous demolition or marring of one of Rudolph’s great designs.

THE LATEST DESTRUCTION OF A RUDOLPH BUILDING

The opening of Mike Diamond’s article about the demolition of the Biggs Residence, which appeared in the March 12, 2021 issue of the Palm Beach Post.

We’re shocked that yet another of Paul Rudolph’s fine works of architecture has been demolished—and, if the news report is accurate, it’s been allegedly done without even a permit.

The Biggs Residence is a Rudolph-designed residence in Delray Beach, Florida, from 1955-1956. Over the years, the subsequent owner or owners have not been kind to it: there have been numerous and highly conspicuous changes and additions which cannot be called sympathetic to Paul Rudolph’s original design. New owners have, in the last few years, been planning to remove the offending changes and accumulated construction—and have been lauded for their good intentions. Repairs and restorations were to be done, as well as alterations and additions that were to be sympathetic to the building (and be resonant with Paul Rudolph’s approach to planning and construction.) Plans were filed, and the owner’s architect—an award winning firm—produced a well-composed “justification statement” which offers some interesting and convincing thinking about how they intended to proceed with the project, their design strategies and solutions, and how they were to have the property “rehabilitated.”

But—

But, according to March 12th article in the Palm Beach Post, much more has actually happened at the site. Their reporter, Mike Diamond, reports that the current owners “. . . .were found to have violated the city’s building code by demolishing the house without a permit from the city’s Historic Preservation Board.”

This site photo shows that, as of the moment it was taken, some of the Biggs Residence’s structural steel was still in place—but most of the rest of the house (exterior and interior walls, windows, ceilings, finishes, cabinetry, fittings…) has been demolished and removed.

The article further says that the owners “. . . .must obtain an after-the-fact demolition permit. . . . They also face steep fines for committing and ‘irreversible’ violation of the city’s building code.” The owners are disagreeing, and claiming that the city misinterpreted their documents and, in the article’s words, their lawyer claims that “. . . .the city should have realized that the approvals for renovation could have resulted in the house being demolished based on its deteriorating condition….”

That is a claim which an attorney for the city and a city planner both dispute.

SERIOUS QUESTIONS

Perhaps there were good reasons for the owners to proceed this way—but there are serious questions:

• What were their compelling reasons?

• What were the building’s actual conditions, which led them to decide for demolition?

• What alternatives were considered?

• Could there have been other approaches?

• What did the architect think of this decision to demolish?

No doubt, there will be further developments in this case, and we will be following it.

PAUL RUDOLPH’S DESIGN AT tHE BIGGS RESIDENCE: PURITY OF CONCEPT

The Biggs Residence was—and now, unfortunately, we’ll have to speak of it in the past tense—an important part of Paul Rudolph’s oeuvre. There he continued exploring several design themes he’d been working on, ever since he’d returned from service in World War II and restarted practice in Florida—and at Biggs, perhaps, he brought one of those themes to its most perfect realization.

Rudolph’s perspective rendering for the Biggs Residence—a drawing which shows his original platonic intent: a pure “rectangular prism” floating above the ground.

Illustrations from Le Corbusier’s manifesto, “Vers une Architecture” (“Towards An Architecture”), in which he speaks of the compelling beauty of pure forms.

As you can see from Rudolph’s perspective rendering (above-left), his conception was quite “platonic”: he was intent on creating a pure form, “floating” above the earth, and tethered to it as lightly as possible—in this case, by an open staircase and a few slender uprights. Even the service block (presumably to contain or screen the boiler, and maybe an auto,) sheltering below, was fully detached from the prime living volume. Such a conception (and goal) comes out of one of the root obsessions of the Modern movement in architecture: a kind of purism which is animated by a love of geometric forms, and which eschews all that might obscure that purity. Le Corbusier, in his foundational book, “Vers une Architecture” (“Towards An Architecture”) puts it boldly:

“Architecture is the masterly, correct and magnificent play of masses brought together in light. Our eyes are made to see forms in light; light and shade reveal these forms; cubes, cones, spheres, cylinders or pyramids are the great primary forms which light reveals to advantage; the image of these is distinct and tangible within us without ambiguity. It is for this reason that these are beautiful forms, the most beautiful forms. Everybody is agreed to that, the child, the savage and the metaphysician.”

Of course, interest in (and obsession with) such “pure” geometric forms goes back to the ancients (i.e.: the term “platonic”), and even in the 18th century—a time when classical architecture was dominant, including its full ornamental armamentarium—architects like Claude-Nicolas Ledoux and Étienne-Louis Boullée produced visionary drawings of architectural projects that embraced such purity (with perhaps the most famous being Ledoux’s design for a spherical villa.)

Claude-Nicolas Ledoux’s view of a spherical country house. He fully developed the design, including plans and sections.

Paul Rudolph, born during Modernism’s heroic years. was educated by the founder of the Bauhaus himself, Walter Gropius (who was head of the architecture program at Harvard while Rudolph was a student there). He could not have helped being immersed, taught, and saturated in such aesthetic ideals—and he brought them into his work.

Looking at Rudolph’s oeuvre, we can see that he tried this platonic approach to residential design prior to Biggs: with the Walker Residence project of 1951—but that remained unbuilt; and the Leavengood Residence of 1950—but that building had a more complex program, and thus many more appurtenances outside of the house’s main body (and it also had visually firmer connections to the ground.) So Leavengood did not approach the platonic ideal anywhere as closely as Biggs.

THE AESTHETICS (AND DRAMATICS) OF STRUCTURE

An view of the interior of the Galerie des Machines, one of the exhibition buildings erected for the 1889 world’s fair in Paris. The architects (headed by Ferdinand Dutert) and the engineers (headed by Victor Contamin) dramatically showed the potentials of steel and iron—both as spanning structure and as an expressive medium. The size of the building can be judged from the figures in the distance.

In the initial decades of Rudolph’s career—given the simplicity of the programs for which he was asked to design, and the often limited budgets—structure was one of the few ways that he could explore the potentials of architectural design, and he fully used it as an expressive tool. Whether by doubling vertical members (as he did at the 1951 Maehlman Guest House and the 1952 Walker Guest House), or by using a dramatic suspended catenary roof system (as at the 1950 Healy (“Cocoon”) Guest House), or anticipating the utilization of curved plywood for structural roof arches (as at the 1951 Knott Residence project), Rudolph was always looking at ways to transcend structure’s function, and raise it to the poetics of design.

Certainly, this expressive use of structure has always been a concern of architects, from Gothic cathedral builders to the creators of the titanic structures of iron and steel which emerged during the 19th Century (especially in France, England, and the US).

The “masters” of modernism—having abandoned expressive styles, modes, and motifs available to previous generations—often turned to using structural systems as an important part of their architectural palette, and they did so in inventive ways. Mies van der Rohe’s Farnsworth House ((1945-1951) is an icon of Modern architecture and residential design—and one of the most notable aspects of his design is the relationship he set-up between the planes of the floor and roof, and the building’s vertical steel columns. The columns are, or course, supporting elements—yet Mies plays with their role, having them visually slide past the floor and roof’s perimeter steel members. This confers a partially floating quality to those planes—possibly one of Mies’ prime goals. [It’s also notable that Philip Johnson, at his Glass House (1947-1949), took yet another direction with these relationships. He placed the vertical steel structural members inside the house’s volume, and integrating them with the frames which held the walls of glass—and thus absorbed the structure into the design of the building’s envelope.]

The eyes of the architectural world were on Mies’ design (and Johnsons!)—and Rudolph would have known them well. At Biggs, in contrast to Mies or Johnson, Rudolph chose to pull the perimeter structural frame noticeably inward from the outer edge house’s main floor volume above. Thus, instead of experiencing the building as a pair of planes (as with Mies), Biggs main living area is perceived as a separate volume (reinforcing its “platonic-ness”), only resting upon the structure. Moreover, instead of placing the beams in an overlapping relationship (as Mies did), he intersects them boldly—and they appear to be penetrating through each other.

LEFT: The Farnsworth House (1945-1951) by Mies van der Rohe. Its vertical steel columns visually “pass by” the floor’s and roof’s horizontal structural steel “C” members. ABOVE: In contrast to the Farnsworth House, the Biggs' steel columns and beams appear to pass through each other.

Not only can this be seen on Biggs’ exterior, but it is experienced on the inside as well: the large ceiling beams, which dramatically span the living room, also have the same interpenetrating relationship to the interior’s steel columns.

Those column-beam relationships did not exhaust Rudolph’s exploration of structure at Biggs. He had one more occasion in which he used exterior steel elements in an intriguing way: When the perimeter beams met at the outside corners, instead of butting them (as would be done in standard steel construction), he mitered them at the corners. [You can see this in an exterior photo below.] In this way, the upper and lower flanges of the steel beams were not just there for their structural role, but—via this mitering connection—their visual power as a pair of parallel planes was revealed.

THE PRACTICALITIES OF COMFORT AND CONVENIENCE

Even with such geometric ideals, structural intrigues, and the other fascinations in which creative architects like Rudolph engage, he was also a very practical designer—and sensitive to his client’s needs. At the point when he received the Biggs commission, he had nearly three dozen constructed projects “under his belt.” So, whatever his interest in building pure forms, his planning of the Biggs Residence included features which the owners would find gracious and practical.

The main (upper) floor contained:

• two bedrooms (well separated, providing for excellent spatial and acoustic privacy, and each with a significant amount of closets and its own bath)

• a central living/dining area (with large amounts of windows for good cross-ventilation—and the ability to catch breezes from the house’s raised design)

• a kitchen adjacent to the dining area (with a wise balance of openness and enclosure)

• a broad “storage wall” in the central area—a feature of American post-World War II residential design, pioneered by George Nelson

Paul Rudolph’s floor plan of the upper (main volume) level of the Biggs Residence, exhibiting his practical and gracious sense of planning.

The ground floor was also well thought out, and included:

• An exterior sitting area (well shaded from the Florida sun)

• A covered parking area (also shielding the car from solar overheating, as well as Florida’s occasional heavy rains)

• The entry and stairs (up to the main level)

• Additional storage or mechanical space (always useful)

The Biggs living room, in which some segments of the house’s structural steel can be seen—especially the pair of long beams which span the living space.

Another view of the living area—this time, towards the dining table at the end of the room, which sits near the storage wall. At the far right is the entry passage to the kitchen. In this photograph, one of room’s pair of large steel ceiling beams is strongly emphasized.

Raising the body of the building liberates space at the ground level, which is left open for shaded outdoor seating and parking. Structural steel—for the columns, and the inset perimeter and intermediary beams—is exposed, and the connections are composed and detailed with care.

FURTHER DEVELOPMENTS (AND WHAT YOU CAN DO)

We’ll keep looking into the Biggs case, and let you know how this develops.

If you have any information on this situation—or know of any other Paul Rudolph buildings that might be threatened—please contact us at: office@paulrudolphheritagefoundation.org

We can keep you up-to-date with bulletins about the latest developments—and to get them, please join our foundation’s mailing list. You’ll get all the updates, (as well as other Rudolph news.)—and you can sign-up at the bottom of this page.

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IMAGE CREDITS

The Paul Rudolph Heritage Foundation gratefully thanks all the individuals and organizations whose images are used in this scholarly and educational project.

The credits are shown when known, and are to the best of our knowledge. If any use, credits, or rights need to be amended or changed, please let us know.

Note: When Wikimedia Commons links are provided, they are linked to the information page for that particular image. Information about the rights to use each of those images, as well as technical information on the images, can be found on those individual pages.

Credits, from top-to-bottom, and left-to-right:

Biggs exterior view: photo by Ernest Graham, from a vintage issue of House & Home magazine, June 1959, courtesy of US Modernist Library;  Section-perspective drawing of Burroughs Wellcome building: by Paul Rudolph, © The Estate of Paul Rudolph, The Paul Rudolph Heritage Foundation;  Demolition photo of Burroughs Wellcome building: photography by news photojournalist Robert Willett, as they appeared in a January 12, 2021 on-line article in the Raleigh, NC based newspaper The News & Observer;  Perspective rendering of Biggs Residence: drawing by Paul Rudolph, © The Estate of Paul Rudolph, The Paul Rudolph Heritage Foundation;  Mies’ Farnsworth House column-beam relationship: photo by Benjamin Lipsman, via Wikimedia Commons;  Plan of Biggs Residence: © The Estate of Paul Rudolph, The Paul Rudolph Heritage Foundation;  Photographs of interiors and exterior of Biggs Residence: photo by Ernest Graham, from a vintage issue of House & Home magazine, June 1959, courtesy of US Modernist Library;  Photograph of Paul Rudolph: © The Estate of Paul Rudolph, The Paul Rudolph Heritage Foundation