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FirstName:JohnMiddleName:M. E.Surname:ClarksonTitle:Col.Year of Death:1974Sex:MaleAge at Death:53CanObit:Canadian ObituariesCanObitPage1:20CanObitPage2:0CanObitVolume:13Record Group:Canadian Obituaries. With Source.Source 1:Globe and Mail, July 4, 1974, p. 2.Widowed:No