1. City of Valparaiso, in sec's 23, 24, 25 and 26 T. 35, R. 6 W, Porter Co., Ind. Maps Public content 1890. Text and illustrations surround the map. Scale approximately 1:9,108. 46+ rods = 1 inch. George Omsted.
2. City of Valparaiso, Indiana. Maps Public content 1936. Amstutz, N. S. (Noah Steiner), 1864-. Scale approximately 1:11,300. N.S. Amstutz.