Oscar Martin "Slim" Harrell (1890–1971) was an American Major League Baseball pitcher. He played for the Philadelphia Athletics during the season. He attended Baylor University. His Baylor yearbook lauded him as one of the premier college pitchers in the State. Despite this, he only appeared in one Major League game. References 1890 births 1971 deaths Major League Baseball pitchers Philadelphia Athletics players Holyoke Papermakers players Memphis Chickasaws players Baseball players from Texas Baylor University alumni People from Johnson County, Texas