First Musician · Merged into Mus, effective 1943
Malin/BUPERS source assertion: included in Musician 1c 1943. 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) (#anchorf, First Musician entry; reproduced on archived Ohio PDF p. 8)
- Charles A. Malin/Bureau of Naval Personnel, Abbreviations Used for Navy Enlisted Ratings (1970) (alphabetic abbreviation list, Mus entry)