Although he was in the majors as early as 1908, MLB rules at the time stipulated that a player was considered a rookie until he has had more than 130 at-bats in a season."Archived copy". Archived from the original on June 10, 2007. Retrieved June 3, 2007.{{cite web}}: CS1 maint: archived copy as title (link)
Bennett, Jay (1993). "Did Shoeless Joe Jackson Throw the 1919 World Series?". The American Statistician. 47 (4): 241–250. doi:10.1080/00031305.1993.10475991.
"Ty Cobb & Joe Jackson story"(PDF). www.pde.state.pa.us Jackson also kept playing ball under assumed names throughout the South, including the Army Air Corp 71st Service squadron baseball team winning the league championship in 1934 while being coached by Gabriel Disosway who became a four-star General. Archived from the original(PDF) on February 12, 2006. Retrieved November 23, 2006.
thebaseballpage.com
"Joe Jackson". thebaseballpage.com. Archived from the original on January 26, 2009. (archived January 26, 2009).
Although he was in the majors as early as 1908, MLB rules at the time stipulated that a player was considered a rookie until he has had more than 130 at-bats in a season."Archived copy". Archived from the original on June 10, 2007. Retrieved June 3, 2007.{{cite web}}: CS1 maint: archived copy as title (link)
"Joe Jackson". thebaseballpage.com. Archived from the original on January 26, 2009. (archived January 26, 2009).
"Ty Cobb & Joe Jackson story"(PDF). www.pde.state.pa.us Jackson also kept playing ball under assumed names throughout the South, including the Army Air Corp 71st Service squadron baseball team winning the league championship in 1934 while being coached by Gabriel Disosway who became a four-star General. Archived from the original(PDF) on February 12, 2006. Retrieved November 23, 2006.
