Board of Governors of the Federal Reserve System (U.S.), 1935-. "Approval of application of Walter Heller International Corp. for American National Bank and Trust Co. of Chicago and to continue to engage in certain nonbanking activities" in Press Releases of the Board of Governors of the Federal Reserve System
(May 11, 1973).
https://fraser.stlouisfed.org/title/9237/item/699087, accessed on January 16, 2026.