The Minneapolis Millers graced the fields of the American Association for six decades, from 1902 to 1960. Known as a high-level training ground for professional ballplayers, the Millers were also famous for their heated rivalry with the neighboring St. Paul Saints. Drawing on the extensive array of photographs from the Hennepin County Library Special Collections and the author's private collection, Images of Baseball: The Minneapolis Millers of the American Association presents the history of these "boys of summer."