Bernard Rusness, 48, and his common-law wife Peggy Parmenter vanished from their Wolf Lake, Minnesota, farm after a fire on April 3, 1976. Neighbors discovered the house ablaze between 11:30 p.m. and midnight. The remains of their eight-year-old son Brian and the family dogs were recovered from the rubble, but Bernard and Peggy were not found and investigators concluded they had likely escaped the fire.

The couple had been seen together earlier that day; Bernard was leveling the driveway around 4:00 p.m., and they stopped at a grocery store. All their vehicles remained at the property with keys in the ignition, and Bernard had been working on his Ford pickup when the fire began. They left behind about $1,000 in bank accounts and uncollected paychecks, and no evidence indicated an intentional departure. Foul play is suspected, and searches including cadaver dogs of nearby properties have turned up no trace.

Does anyone have memories, photos, or information about Bernard, Peggy, their farm, or that area in 1976 that could help investigators?