Will 'Cannonball' Jackman of Boston is a legendary baseball great of the old Colored Baseball League during the early 1900s. For seventeen years Jackman pitched the baseball like his nickname. He played with the Philadelphia Colored Giants during the 1920s and 1930s and was a stellar attraction on the semi-pro diamonds of New England. Later playing for the Boston Tigers, Jackman attracted people from all over New England to sandlot games in Cambridge, Quincy, Brockton, Lynn, and Boston (at the Carter Playground on Columbus Avenue). Only his 'color' kept him out of the major leagues.