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Leo Zippin was born in 1905 to Bella Salwen and Max Zippin, who had emigrated to New York City from the Ukraine in 1903. He did his undergraduate and graduate work at the University of Pennsylvania in 1929. His doctoral adviser was John Robert Kline.
Leo Zippin is the author of The Uses Of Infinity, and together with Deane Montgomery, the monograph Topological Transformation Groups. In 1952, he, along with Andrew M. Gleason and Deane Montgomery solved Hilbert's fifth problem.
- "Leo Zippin, 90, Dies; Solved Math Puzzle". NY Times. May 20, 1995.
- Stein, Howard (1977). "Some Philosophical Prehistory of General Relativity". In Earman, John; Glymour, Clark N.; Stachel, John J. Foundations of space-time theories. U of Minnesota Press. pp. 38–. ISBN 978-0-8166-0807-2. Retrieved 22 May 2011.
- Montgomery, Deane; Zippin, Leo (May 1952). "Small subgroups of finite-dimensional groups". Proc Natl Acad Sci U S A. 38 (5): 440–442. doi:10.1073/pnas.38.5.440. PMC . PMID 16589121.
- known as the literary critic and literary historian Nina Baym
- known as Vivian B. Narehood, an attorney at Gibbel Kraybill & Hess