Calvin Michael Anderson, 25, vanished from Iron River, Michigan, after leaving a residence with a former close friend, Richard Kyllonen, at about 1:30 p.m. on June 17, 1974. He was described as five feet eleven inches, about 165 pounds, with brown hair and blue eyes, last seen wearing a red-and-green plaid shirt, faded Levi’s, and high-top leather boots. Calvin had recently separated from his wife, and Kyllonen had moved in with her; the men also were allegedly connected to a 1971 arson, and Calvin had agreed to testify against Kyllonen in that matter. Kyllonen has been interviewed repeatedly and declined a polygraph, but no arrest or charge has been reported.

Investigators now consider Calvin’s disappearance a suspected homicide, though no remains have been recovered, no cause or manner of death has been established, and no one has been prosecuted. A DNA reference sample from his daughter has been entered into the national system, and photographs from the early 1970s are retained in the file. Does anyone who lived in or around Iron River in 1974 recall seeing Calvin or the two men together that afternoon?