He was born in 1842/43 (2 (22 in 1865), 3 (22 in 1865)). He was born in Philadelphia, Pennsylvania (2, 3).
When he enlisted, he was a bookbinder, and was living in Heidelburg, Pennsylvania (2, 3).
When he enlisted, he was 5 feet 8 inches tall, and had a light complexion, grey eyes, and light hair (2, 3 [5'8-1/2", fair complexion, grey eyes, hair 5'8-1/2" [sic]).
He enlisted and was mustered into service on 6 March 1865 (1, 2, 3, 4 [by 15 February?]). He was enlisted for one year, at Norristown, Pennsylvania, by Captain Yerkes (2, 3). He was mustered in as a private, at Norristown, Pennsylvania (3). He was a private in company D (1,5).
He mustered out with his company on 10 July 1865 (1, 3). He was a private, in company D (5).
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) (William Kline)
2 company D, [second] descriptive roll, entry 108 (Wm H Kline)
3 Civil War Veterans' Card File, available at the Pennsylvania State Archives, searched 9 August 2004 (William Kline; rolls have 'William H Kline')
4 consolidated morning report, 91st Pennsylvania, 15 February 1865 (Recruit Kline--uncertain ID, given the dates)
5 index to compiled service records of volunteer Union soldiers who served in organizations from the state of Pennsylvania (William H Kline)