“Saunders Mac Lane,” pp. 196–219 in More mathematical people: Contemporary conversations. Edited by D. J. Albers, G. L. Alexanderson, and C. Reid. Harcourt Brace Jovanovich (Boston, MA), 1990. MR 1143310 incollection
- Biography of Saunders Mac Lane at MacTutor History of Mathematics
- Biography of Saunders Mac Lane at Wikipedia
