Birth certificate
first page
Source: "Massachusetts, Town Clerk, Vital and Town Records, 1626-2001," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:Q23S-RFNC : 18 February 2020), Henry Frederick Pierce, 26 Oct 1902; citing Birth, Somerville, Middlesex, Massachusetts, United States, Massachusetts Secretary of the Commonwealth, Boston; FHL microfilm 007011897.