Maine, Vital Records, 1670-1921 (marriage of Merlyn C. M. Morrill and Hattie M. Russell, Sumner, 16 Oct 1920), online at https://www.familysearch.org/ark:/61903/1:1:Q24N-KKNY (accessed 2026-07-07), Maine VR, Sumner, 16 Oct 1920. Merlyn C M Morrill (groom), 16 October 1920, Sumner, Oxford, Maine; father Geo C Morrill; mother Katie B Shaw; spouse Hattie M Russell.
1930 U.S. Federal Census, Sumner, Oxford, Maine (Merlin C. Morrill household; corroborated by 1940 census ark 1:1:KMM2-4LD), online at https://www.familysearch.org/ark:/61903/1:1:XMD3-B6N (accessed 2026-07-07), 1930 census, age 35. Hattie R Morrill, Wife, 35, Maine
1930 U.S. Federal Census, Sumner, Oxford, Maine (Merlin C. Morrill household; corroborated by 1940 census ark 1:1:KMM2-4LD), online at https://www.familysearch.org/ark:/61903/1:1:XMD3-B6N (accessed 2026-07-07), 1930 census, age 7 (17 in 1940). Beatrice M Morrill, Daughter, 7, Maine
1930 U.S. Federal Census, Sumner, Oxford, Maine (Merlin C. Morrill household; corroborated by 1940 census ark 1:1:KMM2-4LD), online at https://www.familysearch.org/ark:/61903/1:1:XMD3-B6N (accessed 2026-07-07), 1930 census, age 4 (14 in 1940). Elinnor I Morrill, Daughter, 4, Maine