William Jeffers Lank, known as Jeff, was 42 when he was last seen in Wilmington, Delaware, on December 13, 1992. Reports place the last known incident on the Delaware Memorial Bridge: at about 10:44 a.m. the Delaware River and Bay Authority was notified that a person matching his description had jumped from the northbound bridge, and his maroon 1979 Peugeot was found parked on the bridge. Marine rescue personnel searched the water but did not locate him.

Case records list him as a White/Caucasian male about 6 feet tall, 175 pounds, with sandy hair and hazel eyes. He may have been carrying a large black Velcro wallet with identification and was reportedly wearing khaki pants with gray sweatpants underneath, a red shirt, a blue full-length Woolrich winter coat, work shoes or black footwear, and a gold wedding ring.

The New Castle County Police Department is the investigating agency and the case appears in NamUs as MP9496. If anyone saw William on December 13, 1992, or has information about his car, clothing, or movements that morning near the Delaware Memorial Bridge, please come forward.