Thoralf M. Sundt was born in East Las Vegas, NM, and graduated from the University of Pennsylvania in 1923 with his B.S. in Architecture. Although his first appearance in the Philadelphia city directories is in 1925, when he lists himself as an architect, but with no designated office address, the Annual Report of 1926 issued by the Methodist Episcopal Board of Home Missions and Church Extension declares that he is a "leading architect" in the Philadelphia office of the M.E. Church's Bureau of Architecture. By 1929, Sundt has established a partnership with another University of Pennsylvania graduate, Bruce Wenner and set up the Sundt & Wenner office. By 1936 the partners are joined by A. Hensel Fink to create Sundt, Wenner & Fink; and in the 1940s, with the addition of Walter Thomas, the firm expanded to Sundt, Wenner & Fink & Thomas. With each office expansion Sundt maintained his connection to church architecture, especially that of Methodist Episcopal churches.

In 1934, when the University of Pennsylvania's Book of the School was published, Sundt was residing in Wenonah, NJ; but at the time of his death he is listed as a resident of Tucson, AZ, and a member of the Southern Arizona Chapter of the AIA. He had joined the AIA in 1927 and achieved emeritus status in 1966, one year before his death.

Written by Sandra L. Tatman.