William was born about 1862. He passed away in 1954.
Sources
"United States Census, 1910," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:MKL3-LYP : accessed 4 June 2021), William L Knowles, Groton, New London, Connecticut, United States; citing enumeration district (ED) ED 506, sheet 28B, family , NARA microfilm publication T624 (Washington D.C.: National Archives and Records Administration, 1982), roll 141; FHL microfilm 1,374,154.
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