This week’s FF case is Aleca Renee Manning. She was a 22-year-old of Native American descent who disappeared from Phoenix on February 17, 1975. Aleca (whose nickname was Lisa) got separated from her friends while they were at a concert and vanished into thin air, never to be seen again. I don’t have much on this case unfortunately.
I did a search in Newspapers.com (I have a subscription now) and found her mentioned in a 1980 Arizona Republic article, but it wasn’t about her disappearance. It just said that Westwood High School was trying to find graduates for their 10th reunion, Aleca among them.