Eva Marie Ridall was 15 when she was last seen in Bradenton, Florida, on May 1, 1977. Authorities initially treated her as an endangered runaway and believed she may have traveled to Cincinnati, Ohio, by bus or plane. Some accounts say a cousin reported seeing her in Ohio soon after she disappeared and that she planned to go to California, but no confirmed contact followed.

Eva was known to use several aliases, including Aubrey, Natasha, Victoria, and Mattingly as a last name, and she reportedly had a distinctive homemade tattoo, possibly initials, on her ankle. Her father listed her as a surviving family member in his 2010 obituary, showing the family still hoped for her return. DNA samples and age-progression photos have been used in the investigation, but no significant leads have emerged.

If anyone knew Eva, saw her after May 1, 1977, or recognized the tattoo or aliases, please share what is known.