Maine State Archives; Cultural Building, 84 State House Station, Augusta, ME 04333-0084; 1908-1922 Vital Records; Roll Number: 37
"Maine Marriages, 1771-1907," database, FamilySearch (https://familysearch.org/pal:/MM9.1.1/F4FR-M89 : 10 February 2018), Alvin Mclain and Clementine Ulmer, 21 Apr 1850; citing Rockland,Knox,Maine, reference ; FHL microfilm 12,045.