Edward S. Deevy, Jr. (right; 1914-1988) one of the founders of paleolimnology, pioneer in use of radioisotopes for dating lake sediments and major contributor to biogeochemistry and ecology of zooplankton. Photo taken by D.F. Brakke. Photo from old ASLO slide collection; taken by D.F. Brakke; scanned by K.L. Schulz.