Twitchell was born to Albert John and Ella Callista Twitchell in Mansfield, Ohio. After the untimely death of his father in 1906, his mother moved the family to Winter Park, Florida. Twitchell enrolled in Rollins College, but transferred to McGill University, Montreal, in 1910 to study architecture. In 1912, Twitchell transferred schools again, to Columbia University. After his 1917-19 World War I military service, Twitchell graduated from Columbia with a Bachelor of Arts degree in architecture in 1920 and a Masters in Architecture in 1921. Twitchell first came to Sarasota in 1925 as the representative of New York architect Dwight James Baum to manage the final stages of the construction of John Ringling's Cà d'Zan, a Venetian-style mansion on the Sarasota Bay. Florida was in the midst of a land boom. Twitchell purchased thirteen lots in the Ravellan Gardens bayside neighborhood of Sarasota and designed Mediterranean architecture homes on these lots. Lauded in the press, the promise of the project evaporated when the Florida real estate bubble collapsed in 1926. Twitchell retreated to the Northeast and more favorable economic climate.
In 1936, Twitchell moved permanently to Sarasota to open his own architectural and construction company, Associated Builders. Among his earliest commissions were a Siesta Key residence for author MacKinlay Kantor and the Lido Beach Casino. In the following years, Twitchell began experimenting with reinforced concrete and glass structures, facilitating a more modernist approach. In 1938, the American Institute of Architects revoked Twitchell's membership, primarily due to Twitchell's ownership of a construction company. At that time, the profession took a dim view of architects engaged in construction. Twitchell believed, however, that the Florida landscape required a unique understanding of building site planning that could be only be accomplished by merging design and construction. The revocation had no bearing on his ability to work. In 1976, two years before his death, the AIA reversed its decision and recognized Twitchell for his career achievements by naming him "Architect Emeritus." In the summer of 1941, Twitchell hired Paul Rudolph, 28 years his younger, after Rudolph completed his studies at the Alabama Polytechnic Institute and before he began attending Harvard University's Graduate School of Design. Rudolph, like Twitchell, was fixated on vanguard architecture, and the two collaborated on a number of projects in the months prior to Rudolph's departure for graduate studies. Rudolph returned to Twitchell's Siesta Key office in 1946 and partnered with him until 1951. Rudolph focused on the idea of the structure while Twitchell prioritized construction details. Typically, each project required three or four iterations, expressed sequentially, until the initial creative concept became rooted to the specifics of its site. During this time, Twitchell and Rudolph designed many ground-breaking private residences that are the foundation of the Sarasota School of Architecture, including the Miller House and Guest Cottage, the Revere Quality House, the Lamolithic Houses, the Healy Guest House, and the Leavengood Residence in St. Petersburg, Florida. The Revere Quality House, with rooms that opened out onto terraces and landscaped areas, was the first poured concrete house on Siesta Key. Such open design was reflective of the Sarasota School of Architecture philosophy: clarity of construction, maximum economy of means, clear geometry, and honesty in details. Twitchell and Rudolph parted ways in 1951. Between 1953 and 1954, Twitchell partnered with another "Sarasota School" architect, Jack West, and between 1959 and 1965 with his son, Tollyn Jules Twitchell. Ralph Twitchell died in Sarasota, Florida, on January 30, 1978.
Personal life
Twitchell married three times and had five children: Sylva, Tollyn and Terry from his first marriage, and Aaron and Debbie from his second marriage.
