Officer's Steward 1c, 2c, and 3c
The change is dated to 1943; no month or day is given.
- The companion abbreviation list identifies SD as Steward but does not confirm OS as the abbreviation for Officer's Steward.
Source extraction notes
Malin/BUPERS source assertion: changed to Steward 1943. | Re-established from Officer's Steward 1c, 2c, and 3c 1943. Normalized as merged/included. Reconciles 2 reciprocal, grade-specific, or repeated source assertions for the same predecessor/date. The companion abbreviation list does not contain predecessor code OS; this historical form comes from the compilation text or its printed title notation and is flagged in the audit.
Source documents (2)
Reviewed September 23, 2026 against references 1 and 2.
- Charles A. Malin/Bureau of Naval Personnel, Compilation of Enlisted Ratings and Apprenticeships, U.S. Navy, 1775 to 1969 (rev. Dec. 1969)
1. #anchoro, Officer's Steward 1c, 2c, and 3c entry; #anchors, Steward entry; reproduced on archived Ohio PDF p. 11, 18 · source dated December 1969 · cited by the explanation
Open source document (opens in a new tab)3.Charles A. Malin/Bureau of Naval Personnel, Compilation of Enlisted Ratings and Apprenticeships, U.S. Navy, 1775 to 1969 (rev. Dec. 1969) · event transcription · docs/legacy-data/navy-rating-history.jsonl:10; #anchoro, Officer's Steward 1c, 2c, and 3c entry; #anchors, Steward entry; reproduced on archived Ohio PDF p. 11, 18
Open source document (opens in a new tab) - Charles A. Malin/Bureau of Naval Personnel, Abbreviations Used for Navy Enlisted Ratings (1970)
2. alphabetic abbreviation list, SD entry · source dated 1970 · cited by the explanation
Open source document (opens in a new tab)