Note 3 — Chapter XXII · THE CIVIL WAR AND AFTER 1859-1867
Reading edition
Report of Postmaster-General Holt, Senate Documents, 1st Session, 36th Congress, Vol. XI, No. 48. Also Postmaster-General Holt’s communication to James J. Roosevelt, United States District Attorney, at New York, Ibid., XIII, No. 91, p. 11.