The Dictionary of Australasian Biography/Peterswald, William John
Peterswald, William John, J.P., was formerly Inspector of Police in South Australia, and in May 1882 was appointed Commissioner of Police in that colony. Mr. Peterswald is of German origin, and is the only son of the late Colonel William Peterswald, of Jamaica, by his marriage with Jean, daughter of Captain Walter Gray. He was born in Jamaica in Nov. 1829, and was educated at Jersey, where he subsequently resided and became a captain of militia. Mr. Peterswald married in 1852 Emily Mary, daughter of Charles de St. Croix, and emigrated to South Australia in the same year.