Alfred T. Fellheimer was an American architect. He began his career with Reed & Stem, where he was lead architect for Grand Central Terminal. Beginning in 1928, his firm Fellheimer & Wagner designed Cincinnati Union Terminal.

Reed and Stem is an American architectural and engineering firm. The firm was founded in St. Paul, Minnesota in 1891 as a partnership between Charles A. Reed (1858–1911) and Allen H. Stem (1856–1931), the successful partnership captured a wide range of commissions. The firm was reformed as Wank Adams Slavin Associates in 1961, and adopted the name WASA Studio in 2004.