Ships
- USS Flounder (SS-251) Commanding officer from commissioning, 29 November 1943 · Relieved on 9 May 1944
Carl Arthur Johnson commanded Flounder (SS-251) from her commissioning on 29 November 1943 through her first war patrol. The Dictionary of American Naval Fighting Ships prints Commander C. A. Johnson. uboat.net gives the full name and ends the tour on 9 May 1944, the day that patrol ended at Milne Bay. The patrol sank nothing.
