Statistics for occurrence #1 of “Mch” in chapter 17, page 345 of Emilio, Luis F., History of the Fifty-Fourth Regiment of Massachusetts Volunteer Infantry , 1863-1865:

...mar.; farmer; Unionville, Pa. 11 Mch 63; 20 Aug 65. $50. Ferris, John R. 27, mar.; laborer; Gt. Barrington. 28 Nov 63; 20 Aug 65. $325. Gallas, Joseph 27, sin.; stevedore; Philadelphia. 3 Mch 63; 20 Aug 65. Wounded 18 Jly 63 Ft. Wagner. $50. Garner, George H. 28, mar.; barber; Marlboro. 14 Jly 63; 30 Aug 65 New York. ——
...
Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  
† Mch 956 851 2 1 0 user votes
William McH 4 0 0 0 0 user votes
A. McH 2 0 0 0 0 user votes
George McH 2 0 0 0 0 user votes

† This entity has been selected by the automated classifier as the most likely match in this context. It may or may not be the correct match.