Dorothy Dotty Mildred Clitheroe was 14 when she vanished from Cortez Park in Phoenix on the evening of September 20, 1973. Witnesses saw her walk toward the park restrooms at about 6:30 p.m.; she was never heard from again. At the time she was described as 5 feet 3 inches to 5 feet 4 inches, 130–140 pounds, with brown hair and brown eyes. She wore a white tank top with a multi-colored inverted teardrop pattern, blue Levi’s bell-bottom jeans widened with blue-and-white dotted material, oval eyeglasses with thick lenses that darkened in sunlight, and had pierced ears.

A scar on a forearm from backing into a hot radiator reportedly read US Steel, though by 1973 only the letter U may have remained visible. Authorities have long listed her as endangered missing; her DNA is in CODIS and age-progressed images have been released. Investigators have looked at leads that included possible travel to Portland, Oregon, or Houston, Texas, and some observers have noted a resemblance to an unidentified person in a photo linked to Rodney Alcala, but no connection has been established.

Does anyone who knew Dotty or was in the Cortez Park area that evening have information to share?