Ray was born in 1872. He is the son of Minor Allen and Louisa Unknown.
"United States Census, 1880," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:M6G1-C83 : 26 August 2017), Ray M Allen in household of Minor H Allen, San Rafael, Marin, California, United States; citing enumeration district ED 234, sheet 69A, NARA microfilm publication T9 (Washington D.C.: National Archives and Records Administration, n.d.), roll 0068; FHL microfilm 1,254,068.
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