found: His Look for the body, 1952.
found: His The return of the headless horseman, c1982: CIP t.p. (Matt Christopher) data sheet (b. 8-16-17)
found: On the field-- with Terrell Davis, c2000: t.p. (Matt Christopher) t.p. verso copyright info. (Catherine M. Christopher)
found: Phone call to pub., May 8, 2000: (Catherine M. Christopher is Matt's wife; author deceased; Matt Christopher is a trademark)
found: U.S. copyright file. Feb. 26, 2001 (Christopher, Matt, 1917-; Christopher, Matt, -1998)
found: http://www.falls.ig.net, July 31, 2001 (Matt Christopher (August 16, 1917 - September 20, 1997))
found: The man who only hit homers, c2004: CIP t.p. (Matt Christopher) galley (Matthew Frederick Christopher)
found: Wikipedia WWW site, September 13, 2012: (Matthew "Matt" Christopher (August 16, 1917 - September 20, 1997) was an author of children's books, born in Matthew "Matt" Christopher (August 16, 1917 - September 20, 1997) was an author of children's books, born in Bath, Pennsylvania. He was a prolific author, writing more than one hundred books, mostly children's novels centered around sports.)