Rand McNally and Company. "July 1928 : Illinois-Iowa," Rand McNally Bankers Directory (July 1928). https://fraser.stlouisfed.org/title/105/item/598545/content/pdf/rmbd_192807_03_illinois, accessed on April 23, 2024.
Rand McNally and Company. "July 1928 : Illinois-Iowa," Rand McNally Bankers Directory (July 1928). https://fraser.stlouisfed.org/title/105/item/598545/content/pdf/rmbd_192807_03_illinois, accessed on April 23, 2024.