Marine Corps · SSN history

299 Groundman, Telephone and Telegraph

Appendix B identifies SSN 299 as “Groundman, Telephone and Telegraph” under AR 615-26, September 1942 and supplements, and lists SSN 641 as a suggested conversion. This was not an automatic replacement: each affected individual's Qualification Card had to be reviewed against the manual's job specifications.

Codes named in this history

Codes without a directory match

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

Documented history

Groundman, Telephone and Telegraph

June 1945 is the manual's publication month, not an established conversion date. No effective date is given for this entry.

  • The June 1945 Present Title column is blank; the entry does not establish a fixed replacement or an explicit cancellation.
Source extraction notes

Predecessor title from the AR 615-26 column: Groundman, Telephone and Telegraph. Suggested conversions/remarks: 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.