Penniman, George W. See Hartshorn, W.N.

Phillips, Ulrich B.: American Negro Slavery. D. Appleton & Co., New York, 1918.

Plantation and Frontier. Vols. I and II of Documentary History of American Industrial Society. Arthur H. Clark Co., Cleveland, 1910.

Pike, G.D.: The Jubilee Singers and Their Campaign for $20,000. Boston, 1873.

Pike, J.S.: The Prostrate State: South Carolina under Negro Government. New York, 1874.

Pipkin, James Jefferson: The Negro in Revelation, in History, and in Citizenship. N.D. Thompson Publishing Co., St. Louis, 1902.

Platt, O.H.: Negro Governors. Papers of the New Haven Colony Historical Society, Vol. 6. New Haven, 1900.

Reese, David M.: A Brief Review of the First Annual Report of the American Anti-Slavery Society. New York, 1834.

Rhodes, James Ford: History of the United States from the Compromise of 1850 (1850-1877 and 1877-1896). 8 vols. The Macmillan Co., New York, 1893-1919.

Roman, Charles Victor: American Civilization and the Negro. F.A. Davis Co., Philadelphia, 1916.