MASON CITY WAC TESTS "SEEP" -- Pvt. Mary Setter (left) Cedar Rapids, and Capt. Helen Lloyd Jones (right) daughter of Mr. and Mrs. Ralph Lloyd Jones, 104 River Heights, Mason City, are typical enlisted and commissioned WACs on duty at Fort Knox, Ky. Private Setter is taking a "seep" (amphibious "jeep") to the post motor pool after a trial run.
Source: Mason City Globe-Gazette, March 31, 1944 (photo included)