Lovell was last seen in Stinson Beach, California sometime in June 1974. She was hitchhiking along the California coast an eighteen-year-old friend, Stephen Locke Packard. They planned to eventually go to Seattle, Washington to visit the World's Fair, then return home to Missoula, Montana. Packard called his family from Stinson Beach, California on June 10, 1974. On June 20, one of his traveler's checks was cashed at a store in Westport, California. This is the last sign of them; neither Packard nor Lovell have been seen or heard from again.

Photos of Packard are unavailable. He is described as Caucasian, 6'3 tall and 180 to 190 pounds, with blue eyes and blond hair below ear-length. Santa Maria, California police are investigating Lovell and Packard's disappearances. Their cases remain unsolved.