Walter Sims and Jim Duke

Walter Sims Duke was the son of William Lafayette Duke and Delia LaPearl Story. He was b. 18 Aug 1907 in Paint Rock, Concho Co., TX. He m. Lois Amelia Pape 26 Oct 1930. She was the daughter of Arthur Simom Pape and Hattie Pearl Jordan. He is the one on the far left. The one in the middle is his son John Walter Duke b. 30 Oct 1937 in Ballinger, Runnells Co., TX and m. Betty Berryhill. I have no idea as to the name of the person on the right.