Premier Atlas of the World. Containing Maps of All Countries of the World, with the Most Recent Boundary Decisions, and Maps of All the States, territories, and Possessions of the United States with Population Figures from the Latest Official Census Reports, Also Data of Interest Concerning International and Domestic Political Questions. Rand McNally & Company. 1925. p. 190.
froelichtractor.com
"Froelich, Iowa". Froelich Foundation. Retrieved September 1, 2016.
