Indiana native John S. Gottschalk served as director of the U.S. Fish and Wildlife Service from 1964 to 1970 – a period of ‘Great Society’ expansion in American conservation, yet one increasingly limited by financial realities arising from the ‘guns and butter’ philosophy of the Johnson Administration. The agency launched major new initiatives in wilderness protection, endangered species recovery, and urban wildlife conservation, and added 500,000 acres to the National Wildlife Refuge System. But it was in the field of pesticide research, culminating in the 1972 ban of DDT, that Gottschalk took greatest pride. ‘The only thing I want my grandchildren to remember about me is that I was the director when this work was done at Patuxent (Wildlife Research Center). I was the guy that fought in the congress…I led the charge to get the money for this work’.