Historic police notes re.Trooper Buttfield in the north west of SA in 1883, Police Officer Jack Francis 1937 in Oodnadatta, Mounted Constable Casey 1920 at Tarcoola who recommended the appointments of MC ‘s Copeland and Ridge to the Stuart Range Opal Field in 1921. Also mentioned are Constables D Snodgrass and R James from Kingoonya and First Class Constable Eric(Dusty) Rhodes, stationed at Coober Pedy in 1965.