Staff & Research

Marc Wilson
Collection Manager and Head of Section

Debra Wilson
Collection Assistant

Former Curators and Custodians
Click here for more information on the history of the section and past collectors.


  • Douglas Stewart
  • Charles R. Fettle
  • Henry Leighton
  • I. P. Tolmachoff
  • David M. Seaman
  • E. R. Eller
  • Delbert Oswald
  • Mary R. Dawson
  • Andrew Sicree
  • Richard A. Souza

    Research Associates 


  • Marc DeGraef, PhD, Carnegie Mellon University
  • Bryan Lees, Collector’s Edge Minerals 
  • Ryan Mathur, PhD, Juniata College
  • Donald Palmieri, GG, ASA, Gem Certification & Assurance Lab
  • James Reilly, GG, Moses Jewelers
  • Tim Moses, GG, Moses Jewelers



  • David Alison
  • Bob Kerr
  • Spencer Lieber
  • Cedric Wilson