Douglas was born in 1897. He was the son of Irwin Armstrong and Laura Miller. He passed away in 1969.
"Recensement du Canada de 1911," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:QVB8-YJ4P : 16 July 2016), Douglas Armstrong in entry for Irwin Armstrong, 1911; citing Census, Essex South Sub-Districts 53-58, Ontario, Canada, Library and Archives of Canada, Ottawa, Ontario; FHL microfilm 2,417,697.
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