August 20. Baseball record for Grand Slam Home Runs is set by Lou Gehrig in 1938. New Arrivals Aug 19 Written By August 20, 1938. Baseball record for Grand Slam Home Runs is set by Lou Gehrig at 23. News Photograph of Lou Gehrig as he appeared in 1932 in Yankee Stadium.
August 20. Baseball record for Grand Slam Home Runs is set by Lou Gehrig in 1938. New Arrivals Aug 19 Written By August 20, 1938. Baseball record for Grand Slam Home Runs is set by Lou Gehrig at 23. News Photograph of Lou Gehrig as he appeared in 1932 in Yankee Stadium.
