Carnegie Endowment. Annual Report. Carnegie Endowment for International Peace, 1928 — 179-bet.
familysearch.org
„United States Census, 1880“, database with images, FamilySearch: August 14, 2017, Edward S Hamlin, Boston, Suffolk, Massachusetts, United States; citing enumeration district ED 753, sheet 232A, NARA microfilm publication T9 (Washington D.C.: National Archives and Records Administration, n.d.), roll 0560; FHL microfilm 1,254,560.
loc.gov
„Charles Sumner Hamlin“. Library of Congress. — „Lawyer, politician, assistant secretary of the treasury, and governor of the Federal Reserve Board. Correspondence, diaries, manuscripts of writings and speeches, biographical notes, scrapbooks, newspaper clippings, printed matter and other papers relating chiefly to Hamlin's service in the United States Department of the Treasury and the Federal Reserve System, his civic affairs, and his family's social life in Washington, D.C.“. Qaraldi: 2009-yil 17-noyabr.