Signalman · Merged into QM, effective 1948
Malin/BUPERS source assertion: included in Quartermaster 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) (#anchors, Signalman entry; reproduced on archived Ohio PDF p. 14)
- Charles A. Malin/Bureau of Naval Personnel, Abbreviations Used for Navy Enlisted Ratings (1970) (alphabetic abbreviation list, SM, QM entries)