1885 – David Starr Jordan, Indiana University
1886 – David Starr Jordan, Indiana University
1887 – John M. Coulter, Wabash College
1888 – John P.D. John, DePauw University
1889 – John C. Branner, Indiana University
1890 – Thomas C. Mendanhall, Rose Polytechnic Institute
1891 – Oliver P. Hay, Butler University
1892 – John L. Campbell, Wabash College
1893 – Joseph C. Arthur, Purdue University
1894 – William A. Noyes, Rose Polytechnic Institute
1895 – Amos W. Butler, Brookville
1896 – Stanley Coulter, Purdue University
1897 – Thomas Gray, Rose Polytechnic Institute
1898 – Clarence A. Waldo, Purdue University
1899 – Carl H. Eigenmann, Indiana University
1900 – David W. Dennis, Earlham College
1901 – Mason B. Thomas, Wabash College
1902 – Harvey W. Wiley, Purdue University
1903 – Willis S. Blatchley, Indiana University
1904 – Carl L. Mees, Rose Polytechnic Institute
1905 – John S. Wright, Eli Lilly and Company
1906 – Robert Hessler, Cincinnati
1907 – David M. Mottier, Indiana University
1908 – Glenn Culbertson, Hanover College
1909 – Arthur L. Foley, Indiana University
1910 – Percy N. Evans, Purdue University
1911 – Clares R. Dryer, Indiana State Normal School
1912 – Joseph P. Naylor, DePauw University
1913 – Donaldson Bodine, Wabash College
1914 – Severance Burrage, Eli Lilly and Company
1915 – Wilbur A. Cogshall, Indiana University
1916 – Andrew J. Bigney, Moores Hill College
1917 – William Moenkhaus, Indiana University
1918 – Edward B. Williamson, Bluffton
1919 – Edward B. Williamson, Bluffton
1920 – Henry L. Bruner, Butler University
1921 – Howard E. Enders, Purdue University
1922 – Frank M. Andrews, Indiana University
1923 – Charles A Behrens, Purdue University
1924 – Charles C. Deam, Indiana Dept. of Conservation
1925 – Edgar R. Cummings, Indiana University
1926 – William M. Blanchard, DePauw University
1927 – Frank B. Wade, Shortridge High School
1928 – Edward G. Mahin, University of Notre Dame
1929 – Louis J. Rettger, Indiana State Normal School
1930 – Rolla R. Ramsey, Indiana University
1931 – John J. Davis, Purdue University
1932 – Fernandus Payne, Indiana University
1933 – Marcus A. Lyon, South Bend Clinic
1934 – Julius A. Nieuwland, University of Notre Dame
1935 – Will Scott, Indiana University
1936 – Ray C. Friesner, Butler University
1937 – William E. Edington, DePauw University
1938 – Eli Lilly Jr., Eli Lilly and Company
1939 – Truman G. Yuncker, DePauw University
1940 – Frank N. Wallace, Indiana Dept. of Conservation
1941 – Paul Weatherwax, Indiana University
1942 – Melvin G. Mellon, Purdue University
1943 – Theodor Just, University of Notre Dame
1944 – Clyde A. Malott, Indiana University
1945 – Millard S. Markle, Earlham College
1946 – Edward P. Degering, Purdue University
1947 – James F. Mackell, Indiana State Teachers College
1948 – Winona Welch, DePauw University
1949 – Charles L. Porter, Purdue University
1950 – Stephen S. Visher, Indiana University
1951 – William P. Morgan, Indiana Central College
1952 – Prentice D. Edwards, Ball State Teachers College
1953 – Horace M. Powell, Eli Lilly and Company
1954 – Otto B. Christy, Ball State Teachers College
1955 – Alfred H. Meyer, Valparaiso University
1956 – Raymond E. Girton, Purdue University
1957 – Willis H. Johnson, Wabash College
1958 – William A. Daily, Eli Lilly and Company
1959 – Ralph E. Cleland, Indiana University
1960 – Arthur T. Guard, Purdue University
1961 – Lawrence H. Baldinger, University of Notre Dame
1962 – Harry G. Day, Indiana University
1963 – Howard H. Michaud, Purdue University
1964 – Edward L. Haenisch, Wabash College
1965 – Frank J. Welcher, Indiana University
1966 – Carrolle A. Markle, Earlham College
1967 – Alton A. Lindsey, Purdue University
1968 – William J. Wayne, Indiana University
1969 – Howard R. Youse, DePauw University
1970 – Frank A. Guthrie, Rose Polytechnic Institute
1971 – Samuel N. Postlethwait, Purdue University
1972 – Otto K. Behrens, Eli Lilly and Company
1973 – William B. Hopp, Indiana State University
1974 – Damian V. Schmelz, Saint Meinrad College
1975 – John B. Patton, Indiana Geological Survey
1976 – Donald J. Cook, DePauw University
1977 – Clarence F. Dineen, St. Mary’s College
1978 – Jerry J. Nisbet, Ball State University
1979 – J. Dan Webster, Hanover College
1980 – Robert E. Henderson, Indianapolis Center for Advance Research
1981 – Robert E. Henderson, Indianapolis Center for Advance Research
1982 – William R. Eberly, Manchester College
1983 – Alice S. Bennett, Ball State University
1984 – Theodore J. Crovello, University of Notre Dame
1985 – Benjamin Moulton, Indiana State University
1986 – Ernest E. Campaigne, Indiana University
1987 – Stanley J. Burden, Taylor University
1988 – Wilton N. Melhorn, Purdue University
1989 – Charlotte M. Boener, Indiana State University
1990 – Wendell F. McBurney, Indiana University-Purdue University at Indianapolis
1991 – Cornelius W. Pettinga, Eli Lilly and Company
1992 – C.W. Lovell, Purdue University
1993 – Duvall A. Jones, Saint Joseph’s College
1994 – Wayne P. Mueller, University of Evansville
1995 – Gene Kritsky, College of Mt. St. Joseph
1996 – James R. Gammon, DePauw University
1997 – James D. Haddock, IUPU Fort Wayne
1998 – Rebecca Dolan, Butler University
1999 – Marion T. Jackson, Indiana State University
2000 – Ruth H. Howes, Ball State University
2001 – Edwin R. Squiers, Taylor University
2002 – Terry West, Purdue University
2003 – Robert D. Waltz, Department of Natural Resources
2004 – Don Ruch, Ball State University
2005 – Uwe Hansen, Indiana State University
2006 – Clare Chatot, Ball State Universtiy
2007 – John Schutt, Taylor University
2008 – Nils I. Johansen, University of Southern Indiana
2009 – Paul Rothrock, Taylor University
2010 – James Curry, Franklin College
2011 – Richard Kjonaas, Indiana State University
2012-13 Michael Finkler, Indiana University Kokomo
2013-14 Dale Edwards, University of Evansville
2014-15 Arden Bement, Purdue University
2015-2016 Michael Homoya, Indiana Dept. of Natural Resources, Division of Nature Preserves
2016-2017 Darrin L. Rubino, Hanover College
2017-2018 Horia Petrache, IUPUI
2018-2019 Alice Long Heikens, Franklin College
2019-2020 Vanessa Quinn, Purdue Northwest