Joan Ellen Hansen, 30, disappeared from Des Moines, Washington, after a distressing phone call on August 10, 1962. She had gone to collect belongings from the home she once shared with her estranged husband, Robert Hansen, after filing for divorce in May and obtaining a restraining order two days before she vanished. Joan planned to meet her sisters at the Seattle World’s Fair the next day but never arrived.

The last contact was a frantic call to friend Patricia Martin in which Joan exclaimed that someone was in the basement and then screamed before the line went dead. Patricia’s subsequent calls reached Robert, who told her Joan was with Patricia. Robert did not report Joan missing until August 15. Joan’s Chevrolet Biscayne was later found abandoned in Seattle with flat tires, windows down and an unusually trashed interior; no usable prints or clear signs of foul play were reported and searches turned up no trace of her.

A judge granted the divorce in November 1962, finding sufficient evidence of abuse. Joan was declared legally dead in 1975; a 2006 ground-penetrating radar search of a Hansen family farm in the Kent Valley found no evidence of remains. No charges were filed in connection with her disappearance. If anyone knew Joan, her movements in August 1962, or the locations she visited, please share what is known.