The career of Company I, later known at Company D, 150th machine gun battalion, Forty-second division, American expeditionary force.--The career of Company A, later known as Company B, 106th machine gun battalion, Twenty-eighth division, American expeditionary force.
The Twenty-eighth division, Pennsylvania's guard in the world war; forewards by the commanding generals. The history of the Keystone or Iron division in the world war. Also the history and traditions of the Pennsylvania national guard and its predecessor the Pennsylvania militia
