William Michael Regan

American biologist

American plant pathologist

American professor

American writer and academic

Chair of the Department of Modern Languages at the University of Oklahoma

Professor of Psychology and Sociology

Professor of American History; Vice-Chancellor University of London

Catholic bishop

American university professor and sociologist

American theologian

Austrian-American zoologist

American physicist

American educationist and university professor

American university president, professor of English language and literature

American classical philologist

American political scientist

American ichthyologist

American geologist and palaeontologist

American mycologist and university teacher

Canadian-born American classicist and papyrologist