Federal Reserve Bank of Boston. "2013 Annual Report : Financial Statements as of and for the Years Ended December 31, 2013 and 2012 and Independent Auditors' Report," Annual Report of the Federal Reserve Bank of Boston (as of December 31, 2013). https://fraser.stlouisfed.org/title/465/item/678203/content/pdf/2013_frbboston_annualreport_financials, accessed on October 14, 2026.