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Oswald Christian Orwoll (November 17, 1900 in Portland, Oregon – May 8, 1967 in Decorah, Iowa) is a former pitcher & first baseman for the Philadelphia Athletics who had a career 6-7 record in 39 games pitched (8 starts) and a .294 batting average in 94 games. He was part of Connie Mack's 1929 World Series team, but did not appear in any games. On November 29, 1930 he was traded by the Athletics with Homer Summa to the Portland Beavers of the Pacific Coast League for Herb Lahti.
He also played halfback for the Milwaukee Badgers of the National Football League in 1926.