William Bill Campbell Underhill was a 20-year-old University of Minnesota student who disappeared on March 1, 1969, after leaving a party near Dinkytown in Minneapolis. He had attended a gathering at the university’s West Bank campus and stepped outside at some point during the night; he was never seen again. Raised in St. Paul, he had recovered from polio as a child and enjoyed fishing, weightlifting, and outdoor activities.

Shortly before he vanished, Underhill called his girlfriend sounding sad and told her to stay a nice person, a remark her family later regarded as potentially farewell. His leather jacket, with his wallet inside, was returned to the family days later. Friends and relatives reported him missing after realizing he had not returned home. Years of investigation produced no resolution; the family submitted DNA samples and cold case detectives reopened inquiries in recent years with the hope that forensic advances might help.

If anyone knew William’s routines, the people he was with that night, or has information that could help clarify what happened after he left the party, please come forward.