"United States Registers of Enlistments in the U.S. Army, 1798-1914," index and images, FamilySearch (
https://familysearch.org/pal:/MM9.1.1/QJDR-H95D : accessed 28 January 2015), William Servaes, 29 Oct 1893; citing p. 88, volume 092, Fort McKinney, , Wyoming, United States, NARA microfilm publication M233 (Washington D.C.: National Archives and Records Administration, n.d.), roll 48; FHL microfilm 1,465,934.