USS S-7 was an S-class submarine laid down on January 29, 1918 and launched on February 5, the following year. It was commissioned on July 1, 1920 under Lt. Cmdr. Sherwood Picking’s command with the hull number SS-112 and it served in the US Navy for 11 years before it was decommissioned on April 3, 1931. During its activities, the ship carried a complement of 38 people on board and had the main missions in New England, Cavite, Mare Island, Pearl Harbor, Shanghai or Tsingtao. After the decommissioning, the ship was struck from the Navy Register on January 25, 1937.