He was born in 1832/33 (2 (28 in 1861)).
He enlisted and was mustered into service on 29 October 1861 (1, 2). He enlisted at Philadelphia, Pennsylvania (2). He was mustered in as a private, at Philadelphia, Pennsylvania (2). He was a private in company B (1, 3, 4).
He deserted (2). He was a private, in company B (3, 4).
He was not on the muster-out roll when the regiment mustered out (1, 2).
1 Bates, Samuel Penniman. History of Pennsylvania volunteers, 1861-5. Harrisburg: B. Singerly, state printer, 1869-71. 5 volumes. 'Ninety-first regiment', volume 3, pages 186-233. (In the roster) (George Duemonlon)
2 Civil War Veterans' Card File, available at the Pennsylvania State Archives, searched 28 June 2004 (George Duemonlon; rolls have 'Dumonlon')
3 index to compiled service records of volunteer Union soldiers who served in organizations from the state of Pennsylvania (George Deumonlin)
4 index to compiled service records of volunteer Union soldiers who served in organizations from the state of Pennsylvania (George Deumoln)