Naval divers who worked hard and faithfully at the difficult task of raising the submarine (quoted from the original 1928 caption). Probably photographed at the Boston Navy Yard, Charlestown, Massachusetts, circa 19-20 March 1928, shortly after the salvaged S-4 entered dry dock there. Those present are identified in the original caption as (standing, left to right): Michaels, Eadie, Wilson, Carr and Eissn. (Kneeling, left to right): Grilley, Mattox and Doherty. Michaels may be Chief Torpedoman Michels. Eadie is Chief Gunner's Mate Thomas Eadie, who was awarded the Medal of Honor for rescuing Michels during the salvage work. Grilley is probably Ensign Frank W. Crilley. U.S. Naval History and Heritage Command Photograph.