Diana Loncar, 56, vanished from her Chicago home in December 1948. Her children say she was in good spirits that day; that evening she reportedly stepped outside for a moment and left her purse on the back steps. Her daughter found the house empty later that night, and the disappearance was not reported until two days afterward. Diana was last seen wearing a flowered house dress, black shoes, and glasses.

Three days after she was last seen, her coat was recovered along the shoreline of Calumet Park on Lake Michigan. The Coast Guard conducted a two-day search of the lake that turned up no further evidence. Investigators at the time considered that she might have gone to Ohio to visit relatives or that she had died by suicide after an alleged financial loss, but the family questioned both theories. Her children described her husband as an abusive alcoholic who had threatened her, and they said it would have been difficult for her to withdraw a large sum of money without his knowledge.

Decades later the case remains unsolved and the family continues to suspect the husband’s involvement. Does anyone have information about Diana, her husband, or the neighborhood in Chicago in 1948 that could shed light on what happened?