Birth record naming parents: "Massachusetts Births, 1841-1915," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:FX61-PC8 : 11 March 2018), Frank W. Allen, 20 Dec 1894, Adams, Berkshire, Massachusetts; citing reference ID #p39, Massachusetts Archives, Boston; FHL microfilm 1,651,224.
"Massachusetts Marriages, 1841-1915," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:N46N-3WT : 25 May 2018), Frank Allen and Martha Vogel, 6 Mar 1915; citing Adams, Berkshire, Massachusetts, United States, State Archives, Boston; FHL microfilm 2,410,991.
"United States Census, 1900," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:M95X-PM2 : accessed 17 August 2020), Frank C Allen in household of Frank C Allen, North Adams city Ward 4, Berkshire, Massachusetts, United States; citing enumeration district (ED) 53, sheet 13B, family 206, NARA microfilm publication T623 (Washington, D.C.: National Archives and Records Administration, 1972.); FHL microfilm 1,240,632.
"United States Census, 1940," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:K46B-FGF : 27 February 2020), Frank C Allen, Ward 2, Pittsfield, Pittsfield City, Berkshire, Massachusetts, United States; citing enumeration district (ED) 2-85, sheet 2B, line 75, family 38, Sixteenth Census of the United States, 1940, NARA digital publication T627. Records of the Bureau of the Census, 1790 - 2007, RG 29. Washington, D.C.: National Archives and Records Administration, 2012, roll 1569.