found: Breckinridge, Sophonisba Preston. A study of legal tender in England ... 1903:title page (Sophonisba P. Breckinridge)
found: Breckinridge, Sophonisba Preston. Legal tender, 1903:title page (S.P. Breckinridge of the Department of Political Science)
found: American journal of sociology, January 1911:page 433 (Sophonisba P. Breckinridge, The Chicago School of Civics and Philanthropy)
found: Breckinridge, Sophonisba Preston. Social work and the courts, 1934:title page (by Sophonisba P. Breckinridge, Samuel Deutsch Professor of Public Welfare Administration, University of Chicago)
found: Smith, Ethel Marion. Toward equal rights for men and women, 1929:page 4 (Sophonisba P. Breckinridge, Chairman, Committee on the Legal Status of Women)
found: NUCMC data from Swarthmore College Peace Collection for Peoples Mandate Committee (U.S.) Records, 1935-1972(Sophonisba Preston Breckenridge)
found: OCLC search, May 20, 2016:(access points: Breckinridge, Sophonisba Preston, 1866-1948; Breckinridge, Sophonisba P.; Breckenridge, Sophonisba P.; Breckinridge, Sophonisba Preston ; usage: Sophonisba P. Breckinridge; S.P. Breckinridge)
found: Who was who in America, 1943-1950:(Breckinridge, Sophonisba Preston, social worker, educator; born Lexington, Ky., 1886; S.B., Wellesley, 1888; Ph.D., University of Chicago, 1901; J.D., U. Chicago, 1904; member Kentucky bar; member faculty University of Chicago since 1902; resident of Hull House, 1908-1920; instr. then prof. household administration, 1902-1925; prof. social economy, 1925-1929; delegate: Women's Peace Cong., The Hague, 1915; Pan Am. Child Cong., Lima, Peru, 1930; Pan Am. Cong., Montevideo, 1933; interested in civic and philanthropic work; home: Chicago; died July 30, 1948)
