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.
Document commissioning Henry F. Slaymaker captain of the 7th Company of the 98th Regiment of the Militita of the Pennsylvania Commonwealth, Second Brigade, Fourth Division of Militia of Lancaster County, August 3, 1811.