Base Ball is a peer-reviewed book series published annually. Offering the best in original research and analysis, it promotes study of baseball's early history, from its protoball roots to 1920, and its rise to prominence within American popular culture. This volume, number 12, includes thirteen articles on topics ranging from the career of pitcher Harry Coveleski, Philadelphia baseball pioneer Thomas Fitzgerald, and a baseball power couple, James and Harriet Coogan, to early Brooklyn baseball, the game in Canada during World War I, and the amateur teams sponsored by typewriter companies.