Michael Barratt, Professor of Mathematics from 1974-99 at the Northwestern University, Illinois, and Professor of Pure Mathematics from 1964-74 at the University of Manchester. He was a student of Henry Whitehead. His research interests were in algebraic topology.
An uninformative home page is on the Northwestern University website.
Mathematics genealogy page. His students included Ronnie Brown and Peter Eccles.
obituary by Bill Richter