His Buddy's Wife(1925)

Jim McMorrow and Bill Mullaney become close friends during the fighting in France, and Bill asks Jim to look after his family if anything should happen to him. Bill does not return from a patrol in no man's land, and Jim goes to the Mullaney farm, taking care of Bill's wife, Mary, and old Mother Mullaney, who dies shortly after Jim arrives. Jim and Mary are left alone on the farm, and the neighbors begin to gossip.