For more than half a century, San Francisco Seals baseball was a fertile source of future major league players, with a legacy firmly grounded in the annals of Pacific Coast League baseball. Paul and Lloyd Waner, Ping Bodie, Earl Averill, William Kamm, Ferris Fain, Harry Heilmann, Smead Jolley, "Lefty" O'Doul, Frankie Crosetti, the DiMaggio brothers (Joe, Vince, and Dom), Larry Jansen, and others all launched their careers as Seals. From 1903 to 1957, the Seals were the toast of the town, offering tight pennant races and intense games with the Oakland Oaks--their cross-bay rivals--while...