Although chiefly known as an architect in Reading, PA, Frederick A. Muhlenberg did begin his career in Philadelphia and was a member of the Philadelphia Chapter, AIA. He was born in Reading, PA, the son of Dr. William F. Muhlenberg. He graduated from Reading High School in 1904 and received his B.A. from Gettysburg College in 1908, followed by his B.S. in Architecture from the University of Pennsylvania in 1912, and his M.S. from Gettysburg College in 1915. He apprenticed with Charles Barton Keen
, Magaziner & Potter
, and John T. Windrim
in Philadelphia and by 1921 is listed in the Philadelphia city directories as an architect with an office at 807 Flanders Building. From 1922 to 1923 Muhlenberg remains in the Philadelphia city directories as an architect, but he has moved his office to 1713 Sansom Street, room 232. Throughout this time, however, his residential address is given as Reading, PA. Muhlenberg's Reading office, Muhlenberg, Yerkes & Muhlenberg
was not organized until 1935, but Muhlenberg had been operating independently since 1917. Muhlenberg, Yerkes & Muhlenberg lasted until 1954, and then he organized Frederick A. Muhlenberg & Assocs.
(1954-1965), which was succeeded by Muhlenberg-Greene-Veres
Muhlenberg received an honorable mention in the competition for the Arthur Spayd Brooke medal at the University of Pennsyvania in 1912. He was an active member of the T-Square Club, serving as a director in 1914 and as secretary in 1915. He joined the AIA in 1920.