Martin Keith Burleson, 23, was last seen in San Francisco on October 15, 1973. He was born October 9, 1950, had brown hair, blue eyes, stood about 5 feet 11 inches and weighed 150 pounds. On October 1 he told his mother he planned to move back to the family home in Live Oak, California, but he never arrived and no one has heard from him since.

Reports note Burleson may have used the name David Bartholemew, though the reason for that alias is unclear; his family did not report any known threats. The case is classified as endangered missing and the San Francisco Police Department is the primary agency handling it. DNA and other identifying data are on file in case remains are ever recovered, but investigators have had little concrete evidence or witnesses to work with.

Did anyone in San Francisco or Live Oak in 1973 know Martin, know him as David Bartholemew, or have information about his last phone call?