This award was established to honor the past and continuing contributions of Professor and Chair Emeritus Duane Boes. It recognizes the excellence and high teaching standards of a Graduate Teaching Assistant within the Department each year.
- 2024 – Austin Ellingworth
- 2023 – Maddie Rainey
- 2022 – Nathan Ryder
- 2021 – Youngseok Song
- 2020 – Alex Fout
- 2019 – Daniel Mork
- 2018 – Robert McAndrew
- 2017 – Cristian Oliva
- 2016 – Ben Zheng
- 2015 – Ryan Haunfelder
- 2014 – Gabriel Young and Zach Weller
- 2013 – Brett Hunter
- 2012 – Wade Herndon
- 2011 – Erin Schielp
- 2010 – Derek Sonderegger
- 2009 – Joshua French
- 2008 – Amy Kagey
- 2007 – Kallie Luepschen-Meek
- 2006 – Andrew Merton
- 2005 – Todd Iverson
- 2004 – Austin Lampros
- 2002 – Sarah Hawley and Devin Johnson
- 2001 – Ronald C. Wright
- 1999 – Jill E. Smith and Courtney A. Sykes
- 1998 – Jem Corcoran
- 1995 – Richard K. Sutton and Brent D. Burch