Robert Franco Rivera, a 31-year-old Hispanic man, disappeared from Oxnard, California, in 1963 after sending a letter to his family that used a return address in the 1600 block of East Fifth Street. Born June 15, 1932, he was described as 5 feet 6 inches, about 140 pounds, with black hair and brown eyes. Rivera had served in the U.S. Army, moved to California from Texas, and kept in touch with his mother; a family report says a suggestion that his family join him caused friction with his grandfather.

The circumstances of his disappearance are unclear. Family members say they last heard from him in 1963 and believe he would not have voluntarily cut off contact; a relative has suggested possible identity theft. Some official records list a last-seen date of July 28, 1977, which a family member thinks may reflect activity on his Social Security number, but that has not been confirmed. The Oxnard Police Department is listed as the investigating agency and the case remains open.

Did anyone in Oxnard or Ventura County at the time remember Rivera, his address on East Fifth Street, or any contacts after 1963?