United States. Department of the Treasury. "Report of the Secretary of War [Employment]," in United States. Department of the Treasury. "Report of the Secretary of the Treasury on the State of the Finances [for the Fiscal Year Ending June 30, 1851]," Annual Report of the Secretary of the Treasury on the State of the Finances (1851) : 137-145. https://fraser.stlouisfed.org/title/194/item/5497/toc/413378 , accessed on April 24, 2024.