Abraham Zimmerman served in the Revolutionar War. He was the son of Abraham Zimmerman and Maria Eva Gehr. Abraham was born 1760 in Maxatawny, Berks, PA.

Abraham Zimmerman immigrated to PA i the colonial days and settled in Maxatawny Twsp., Berks County and when the patriots engaged the mother country in a war for independence, Mr. Zimmerman was one of the first to enroll himself under the banners of the struggling republic as a soldier in Washington's army. Gen. Washington was a frequent visitor at the Maxatawny homestead and on two or three occasions established his headquarters there.

War of 1812.
Muster-roll of Capt. John Christian's company, in Second Regiment,
Second Brigade Pennsylvania militia, under command of Lieut. Col. John Lotz,
at York, PA. (In service from September 1, 1814 to December 4, 1815, from Berks County.)
Zimmerman, Abraham-Ensign