Stephen Jay Gould, 1989 Ron Redfern, 1995
 John McPhee, 1997  Julie A. Jackson, 1999
Charles "Chip" Groat, 2003 Samuel S. Adams, 2004
 Thomas W. Dibblee, Jr., 2005  A. F. "Fred" Spilhaus, Jr., 2009
Simon Winchester, 2014 Karl E. Karlstrom, 2015
 Laura J. Crossey, 2015  P. Patrick Leahy, 2016