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Male Otis Irving Dewey Click to view Otis Irving Dewey in the family tree

Otis Irving was born on November 13th, 1882 in Canada or Michigan.1   Otis Irving's father was Joseph Bradley Dewey and his mother was Caroline Rosseti Manard.  His paternal grandparents were Simeon Dewey and Lydia Higgans. He had ten brothers and three sisters, named Simeon, Roland Lorenzo, William Edward, Arthur Sydney, Simeon Peter, Russell Elon J., Jay Justin, Frank Morris, Norris Bradley, Harold Jasper, Emaline, Mabelle Rosseti and Orinda Caroline.  He was the fifth youngest of the fourteen children.1 

1 phelps.FTW @ Tree #1353
Further sources/citations:
World Family Tree Vol. 1, Ed. 1 @ Tree #3310, phelps.FTW, World Family Tree Vol. 4, Ed. 1 @ Tree #2332, 2332.ftw