Faculty of Bowman Technical School. Identified are: John Hinkel, Edward Ganse, Bill McKnight, Ralph Harry, George S. Miller, J. Elliott Steinert, Walter Haesler, Helen Haesler, John J. Bowman, Charles Bowman, Eugene Biggs, and Harry Hart.
The Bowman Technical School was founded by watchmaker Ezra F. Bowman in 1887 to teach the trade of watchmaking and engraving. During World War I, the Bowman Technical School trained soldiers to repair delicate aviation and naval instruments.