New York Yankees
Cubs historical sleuthing: Incorrect date edition - Bleed Cubbie Blue
Head of Zeus – Emma's Biblio Treasures
Cubs historical sleuthing: 1950s edition - Bleed Cubbie Blue
Wrigley Field historical sleuthing: 1939 edition - Bleed Cubbie Blue
Cubs historical sleuthing: 1980s edition - Bleed Cubbie Blue
Topps – Page 2 – SABR's Baseball Cards Research Committee
Cubs historical sleuthing: 1920s edition - Bleed Cubbie Blue
Cubs historical sleuthing: 1930s edition - Bleed Cubbie Blue
Wrigley Field historical sleuthing: The Reds visit in 1940 - Bleed Cubbie Blue