"Maine Births and Christenings, 1739-1900," database, FamilySearch (https://familysearch.org/pal:/MM9.1.1/F4C4-55H : 4 December 2014), Mary E. Upham, 03 Sep 1872; citing ROCKPORT,KNOX,MAINE; FHL microfilm 12,046.
"United States Census, 1880," database with images, FamilySearch (https://familysearch.org/pal:/MM9.1.1/MF3R-WB4 : 14 July 2016), May E Upham in household of Isaac Upham, Camden, Knox, Maine, United States; citing enumeration district ED 102, sheet 51C, NA
"Maine Births and Christenings, 1739-1900," database, FamilySearch (https://familysearch.org/pal:/MM9.1.1/F4C4-55H : 4 December 2014), Mary E. Upham, 03 Sep 1872; citing ROCKPORT,KNOX,MAINE; FHL microfilm 12,046.