The 2nd Mass. Regiment, mustered into service on 25 May 1861 after training at Camp Andrew in West Roxbury, was the first unit composed entirely of volunteers raised in the state.
From left to right the men are: J. Parker Whitney, Francis H. Tucker (formerly identified as Charles R. Mudge), Fletcher M. Abbott (formerly identfied as Richard Cary), William Cogswell (formerly identified as Robert G. Shaw), Thomas R. Robeson, James Francis, Edwin R. Hill, Robert B. Brown, Rufus Choate, Richard C. Goodwin, Harrison G.O. Weymouth, Samuel M. Quincy, William D. Sedgwick.