United States. Department of the Treasury. "Index [1837-1844 Inclusive]," in United States. Department of the Treasury. "Report on the Finances, June 1841; Report on the Finances, December 1841," Annual Report of the Secretary of the Treasury on the State of the Finances (1841) : 50-71. https://fraser.stlouisfed.org/title/194/item/5486/toc/384813 , accessed on July 5, 2022.