United States. Department of the Treasury. "Index [1815-1828 Inclusive]," in United States. Department of the Treasury. "Report on the Finances, December 1826," Annual Report of the Secretary of the Treasury on the State of the Finances (1826) : 37-46. https://fraser.stlouisfed.org/title/194/item/5471/toc/263137 , accessed on April 19, 2024.