George Bernard "Dave" Koslo (né Koslowski, March 31, 1920 – December 1, 1975) was a professional baseball left-handed pitcher over parts of twelve seasons (1941–1942, 1946–1955) with the New York Giants, Baltimore Orioles and Milwaukee Braves.\n', '

On April 18, 1947, Koslo gave up Jackie Robinson\'s first major league home run, hit in the third inning.\n', '

Koslo was the National League ERA champion in 1949 with New York. For his career, he compiled a 92–107 record in 348 appearances, with a 3.68 ERA and 606 strikeouts.\n', '

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