Abraham Verghese

physician

Abraham Flexner

reporter

Barry Mazur

mathematician

Daniel Clowes

cartoonist

David Hilbert

mathematician

David Letterman

talk-show-host

David van Dantzig

mathematician

Dusa McDuff

mathematician

Draymond Green

basketball-player

Dr. Seuss

writer

Dov Davidoff

Douglas Coupland

novelist

Douglas Conant

Douglas Adams

writer

Doug Stanhope

stand-up-comedian

Doron Zeilberger

mathematician

Donald Trump

45th-president-of-the-united-states

Donald Knuth

computer-scientist

Don Meyer

basketball-coach

Dirk Jan Struik

mathematician