On May 30, 1921 During an impressive Memorial Day ceremony at the Polo Grounds, Eddie Grant Memorial, erected in memory of a former Giants player killed in World War I, is dedicated. Under the watchful eye of Baseball commissioner Kenesaw Mountain Landis, the five-foot-high monument, located at the base of the clubhouse wall in center field, 465 feet from home plate, is unveiled by the Harvard-educated third baseman’s sisters Florence Grant Robinson and Louise Grant Winters.