Blanshard, Brand. Four Reasonable Men. Middletown, Conn.: Wesleyan University Press, 1984. Blanshard includes Sidgwick in this book, which reveals Blanshard’s admiration for Sidgwick’s thought.
Broad, C. D. Five Types of Ethical Theory. Patterson, N.J.: Littlefield, Adams, 1959. A detailed and thorough critical work on The Methods of Ethics, which is Henry Sidgwick’s most important contribution to moral philosophy.
Copleston, Frederick. A History of Philosophy: Modern Philosophy. Garden City, N.Y.: Doubleday, 1967. In a chapter on “Empiricists, Agnostics, Positivists,” Copleston provided a brief but helpful account of Sidgwick’s contributions to ethical theory.
Havard, William C. Henry Sidgwick and Later Utilitarian Political Philosophy. Gainesville: University of Florida Press, 1959. This historical study defines Sidgwick’s place in the British utilitarian tradition.
James, David Gwilym. Henry Sidgwick: Science and Faith in Victorian England. New York: Oxford University Press, 1970. Situates Sidgwick and his philosophy in the British context of his time.
The Monist. LVIII, no. 3 (July, 1974). This issue of the journal is devoted to Sidgwick’s philosophy. Contains several excellent historical and critical articles.
Schneewind, J. B. Sidgwick’s Ethics and Victorian Moral Philosophy. New York: Clarendon Press, 1977. A well-crafted and thoughtful study of Sidgwick’s ethical theory in the context of his historical period.
Schultz, Bart, ed. Essays on Sidgwick. New York: Cambridge University Press, 1992. Careful studies by able scholars trace the development, insights, and implications of Sidgwick’s moral philosophy and his interpretations of utilitarianism in particular.