Source: St. Charles County's Participation in the World War: A Record of the Men in Military and Naval Service; a History of War Activities at Home, and a Brief Chronology of the Great War (published by the Honor Roll Association of St. Charles County) Location: MO / 9.9 / Sa2c
Last Name:	Hackman
First Name:	Omar
Middle Name:	W.
Photograph:	yes
Birth Date:	1894 January 7
Page:	26-27