Rand McNally and Company. "January 1918 : Iowa-Maryland," Rand McNally Bankers Directory (January 1918). https://fraser.stlouisfed.org/title/105/item/604216/content/pdf/rmbd_191801_04_iowa, accessed on April 25, 2024.
Rand McNally and Company. "January 1918 : Iowa-Maryland," Rand McNally Bankers Directory (January 1918). https://fraser.stlouisfed.org/title/105/item/604216/content/pdf/rmbd_191801_04_iowa, accessed on April 25, 2024.