Marine Corps · SSN history

453 Special Effects Supervisor

Appendix B identifies SSN 453 as “Special Effects Supervisor” under AR 615-26 of September 1942 and its supplements, and suggests SSN 561 as a possible conversion. This was not an automatic replacement: each affected Marine’s qualifications had to be reviewed against the job specifications.

Codes named in this history

Codes without a directory match

  • 561 stated by the source. No directory or archive record matches.

Documented history

Special Effects Supervisor

June 1945 is the manual’s publication date; the entry gives no effective date for a conversion.

  • The June 1945 Present Title column is blank, so the earlier title is not established as a current specialty in that manual.
  • The entry does not establish a fixed transition from SSN 453 to SSN 561.
Source extraction notes

Predecessor title from the AR 615-26 column: Special Effects Supervisor. Suggested conversions/remarks: 561. 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.