"Michigan Births and Christenings, 1775-1995," database, FamilySearch (https://familysearch.org/pal:/MM9.1.1/F4BJ-4DS : 9 December 2014), John E. Howarth in entry for Hiram W. Howarth, 25 Dec 1881; citing Johnstown, Barry, Michigan, reference ; FHL microfilm 2,320,574.