Rand McNally and Company. "July 1921 : Minnesota-New Mexico," Rand McNally Bankers Directory (July 1921). https://fraser.stlouisfed.org/title/105/item/584520/content/pdf/rmbd_192107_05_minnesota, accessed on April 24, 2024.
Rand McNally and Company. "July 1921 : Minnesota-New Mexico," Rand McNally Bankers Directory (July 1921). https://fraser.stlouisfed.org/title/105/item/584520/content/pdf/rmbd_192107_05_minnesota, accessed on April 24, 2024.