John Etter Clark (March 29, 1915 – June 3, 1956) was a provincial politician, teacher and farmer from Alberta, Canada.

Clark had fled and was not among the dead, who included his wife, son, three daughters, a hired farmhand and a visitor.

[5] Police found Clark's body lying on the edge of a dugout approximately 600 yards (550 m) from the farmhouse where the murders took place.

Thirty-two RCMP Officers who travelled the range on horseback with a team of tracking dogs conducted the search.

[2] Clark had previously been hospitalized for a month and a half after a nervous breakdown in 1954, and another during the legislature's 1956 spring session.