Marine Corps · SSN history

531 Cannoneer

The June 1945 manual lists SSN 531 as Cannoneer under AR 615-26 of September 1942 and its supplements, with suggested alternatives of SSNs 601, 603, 610, 845 and 864. These were not automatic conversions: each affected Marine’s Qualification Card had to be reviewed against the job specifications to select the appropriate specialty.

Codes named in this history

Other history records

These source identifiers have archive pages. Their availability does not establish current service use or retirement.

Codes without a directory match

  • 610 stated by the source. No directory or archive record matches.
  • 845 stated by the source. No directory or archive record matches.
  • 864 stated by the source. No directory or archive record matches.

Documented history

Cannoneer

June 1945 is the manual’s publication date; no effective date for this change is stated.

  • No June 1945 Present Title is listed for SSN 531, and the suggested alternatives do not establish a fixed five-way split.
Source extraction notes

Predecessor title from the AR 615-26 column: Cannoneer. Suggested conversions/remarks: 601, 603, 610, 845, 864. The table gives no row-level effective date. June 1945 is the manual publication date, not an effective conversion date.

Source documents (1)

Reviewed September 24, 2026 against references 3 and 4.

Historical information is drawn from the sources linked above. Classification dates are not personal service dates. Spot an error? Let us know.