United States. Department of the Treasury. "Auditor of the Post Office Department," in United States. Department of the Treasury. "Finances: Report of the Secretary of the Treasury on the Finances [for the Fiscal Year Ending June 30, 1853]," Annual Report of the Secretary of the Treasury on the State of the Finances (1853) : 138-140. https://fraser.stlouisfed.org/title/194/item/5499/toc/331466 , accessed on April 19, 2024.