Turret Captain C and 1c · Merged into GM, effective 1948
Malin/BUPERS source assertion: absorbed into Gunner's Mate 1948. Normalized as merged/included.
Sources
- Charles A. Malin/Bureau of Naval Personnel, Compilation of Enlisted Ratings and Apprenticeships, U.S. Navy, 1775 to 1969 (rev. Dec. 1969) (#anchort, Turret Captain C and 1c entry; reproduced on archived Ohio PDF p. 19)
- Charles A. Malin/Bureau of Naval Personnel, Abbreviations Used for Navy Enlisted Ratings (1970) (alphabetic abbreviation list, TC, GM entries)