Alton A. Lindsey (May 7, 1907 – December 19, 1999) was a pioneering ecologist who was largely responsible for the creation of nature preserves in the state of Indiana, where he was a professor of forest ecology at Purdue University from 1947 to 1973.
The Army Corps of Engineers plan to dam Big Walnut Creek in Indiana was also halted due to the efforts of Lindsey and a number of other activists; today there is also a large nature preserve along the Big Walnut.
Lindsey was on Admiral Byrd’s second Antarctica expedition as a biologist and brought a number of penguins back to the states with him, before he had even graduated from Cornell University.
Fellowships established in his name at Purdue University and Goshen College.
Purdue University Alton Lindsey Field Laboratory dedicated to him.