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George Trumbull Ladd (1842–1921)
Ladd, George Trumbull. An American educator and philosophical writer; born at Painesville, OH, Jan. 19, 1842; died in 1921. He was professor of philosophy at Yale (1881–1905). His works include: ‘Principles of Church Polity’ (1881); ‘Doctrine of Sacred Scripture’ (1883); ‘Elements of Physiological Psychology’ (1887); ‘Philosophy of Conduct’ (1902); ‘What Can I Know?’ (1914); ‘What Ought I to Do?’ (1915); ‘What Should I Believe?’ (1915); ‘What May I Hope?’ (1915).