Federal Reserve Bank of Chicago. "[Live Stock National Bank of Sioux City, Sioux City, Iowa and Morningside Savings Bank, Sioux City, Iowa Merged Under the Title of Northwestern National Bank of Sioux City], Circular No. 1931" in Federal Reserve Bank of Chicago Bulletins and Circular Letters
(November 1, 1967).
https://fraser.stlouisfed.org/title/7180/item/659166, accessed on December 15, 2025.