(b Newark, NJ, March 28, 1876; d River Forest, IL, Sept 13, 1948). American architect. He studied architecture at the University of Illinois, Urbana (1897–8). By 1899, after several months in the office of Louis Sullivan, he was working as a draughtsman in the studio of Frank Lloyd Wright in Oak Park, IL. Remaining in Wright’s employ for ten years, in 1904 Drummond designed his most important work, the First Congregational Church, Austin, IL (built 1908). Although dependent on Wright’s Prairie idiom, its interior spaces are boldly expressed through simple, geometric form. In 1910 Drummond moved into a house in River Forest, IL, of his own design, which was a novel variation on Wright’s open plans. Among the architects of the Prairie school, Drummond established one of the most successful practices. In 1912 he formed a partnership with Louis Guenzel (1860–1956) that lasted until 1915. During this time their firm steadily produced buildings designed in an original manner derived from Wright’s work in Oak Park....