Marine Corps · SSN history

741 Switchboard Operator, Common Battery

Appendix B identifies SSN 741 as “Switchboard Operator, Common Battery” under AR 615-26 of September 1942 and its supplements, and suggests SSNs 309 or 641 as possible conversions. These were not automatic replacements: each person's Qualification Card had to be reviewed against the job specifications to determine the appropriate classification.

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

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

Documented history

Switchboard Operator, Common Battery

June 1945 is the manual's publication date, not an effective conversion date. No effective date or completion deadline is stated for SSN 741.

  • The June 1944 tentative-title and June 1945 Present Title entries are blank; the earlier title is not confirmed as a current title in 1945.
  • The suggested alternatives do not establish a fixed split or show which classification any individual received.
Source extraction notes

Predecessor title from the AR 615-26 column: Switchboard Operator, Common Battery. Suggested conversions/remarks: 309, 641. 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.