Diane and her daughter, Tammy Hollins, were last seen in Daytona Beach, Florida on June 11, 1979. A neighbor saw them walking down the street away from their home at 6:00 a.m. Diane never showed up for work that day, and Tammy never arrived at school. They have never been heard from again.

Diane and Tammy left all their belongings behind, as well as money in the bank. They didn't have a car at the time of their disappearances. Diane's parents and older sister are now deceased, but she has other relatives who are still alive and hope to find out what happened to her and Tammy. Their cases remain unsolved.