Harry was born in 1909. He is the son of Harry Callan and Emma Weiss.
"United States Census, 1910", database with images, FamilySearch (https://www.familysearch.org/ark:/61903/1:1:MKY1-NYD : Tue Jul 18 16:25:33 UTC 2023), Entry for Harry Callen and Emma Callen, 1910.
"New Jersey State Census, 1915", database with images, FamilySearch (https://www.familysearch.org/ark:/61903/1:1:QV97-Q9DK : Wed Sep 13 15:24:22 UTC 2023), Entry for Harry J Callan and Emma C Callan, 1915.
"United States Census, 1920", database with images, FamilySearch (https://www.familysearch.org/ark:/61903/1:1:M4TH-G2N : Wed Aug 02 06:23:36 UTC 2023), Entry for Harry J Collan and Enna C Collan, 1920.
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