For most of its existence, the partners were Clarence C. Zantzinger,[1] Charles Louis Borie Jr.,[2] and Milton Bennett Medary,[3] all Philadelphians.
The firm was a launching pad for numerous architects of note, including Dominique Berninger (1898–1949) and Louis Kahn (1901–1974).
Most of the credit for the final building, completed in 1928, is given to architects Howell Lewis Shay and Julian Abele, both from Trumbauer's firm.
The firm collaborated with Paul Philippe Cret for the completed buildings listed below, and on proposals for the Nebraska State Capitol and the Liberty Memorial in Kansas City.
[7] The firm also worked with sculptor Lee Lawrie and iconographer Hartley Burr Alexander, both former collaborators with Bertram Goodhue.