Joe Wood in Hot Springs, Arkansas for training camp in 1915. This photo was taken by George T. Murray of The Boston Journal who accompanied the team to Spring Training. Murray took a shot of Babe Ruth in that camp, in a similar pose, that is quite famous.
This image of Eddie Foster of the Washington Senators was taken circa 1912 in Detroit by William Kuenzel.
This photo shows Joe McGinnity in circa 1907. It was taken by The Pictorial News Co. and is believed to have been published in a 1907 copy of the Police Gazette.
Joe Jackson in his first full season in the Majors, 1911. Feb 1912 date stamp is visible under the photo which means this photo must have been taken during the 1911 season as Spring Training 1912 had yet to begin.