![Ivan Sutherland Ivan Sutherland](http://www.thefamouspeople.com/profiles/thumbs/ivan-sutherland-1.jpg)
![Ivan Sutherland Ivan Sutherland](http://www.thefamouspeople.com/profiles/thumbs/ivan-sutherland-1.jpg)
![Barry C. Barish Barry C. Barish](http://www.thefamouspeople.com/profiles/thumbs/barry-c-barish-1.jpg)
![Jay Wright Forrester Jay Wright Forrester](http://www.thefamouspeople.com/profiles/thumbs/jay-wright-forrester-1.jpg)
![John L. Holland John L. Holland](http://www.thefamouspeople.com/profiles/thumbs/john-l-holland.jpg)
George Wells Beadle was an American geneticist who served as the president of the University of Chicago from 1961 until his retirement. In 1958, he received the Nobel Prize in Physiology or Medicine for discovering the role played by genes in controlling the biochemical events within cells. George Wells Beadle also won other awards like the Thomas Hunt Morgan Medal.
![Frederic Clements Frederic Clements](http://www.thefamouspeople.com/profiles/thumbs/frederic-edward-clements-1.jpg)
Frederic Edward Clements was an American plant ecologist. He was a pioneer in the study of vegetation succession and plant ecology. He also served as a professor in prestigious institutions like the University of Nebraska and the University of Minnesota.
![S. Donald Stookey S. Donald Stookey](http://www.thefamouspeople.com/profiles/thumbs/s-donald-stookey-1.jpg)
![John A. Eddy John A. Eddy](http://www.thefamouspeople.com/profiles/thumbs/john-a-eddy-71186-1.jpg)
John A. Eddy, also known as Jack Eddy, is best remembered for his extensive research on the Sun and was the first to prove that the Sun is a variable star and not a constant star. He also discovered an amateur astronomical observatory of the Native Americans in Wyoming.
![John R. Dunning John R. Dunning](http://www.thefamouspeople.com/profiles/thumbs/john-r-dunning-1.jpg)
![Elmo Roper Elmo Roper](http://www.thefamouspeople.com/profiles/thumbs/no-profile-img.jpg)