- National Mining Hall of Fame and Museum Induction (video)
- THE MMSA GOLD MEDAL – Acceptance Speech
- Speech to The Denver Mining Club – South Pipeline Project
- Speech to Colorado Bar Association Meeting, Colorado Springs, Colorado, October 11, 1980
- Highways and Byways of Mining History – April 18, 2019
- Keynote Speech at the 7th annual National Mining Hall of Fame Induction Banquet: Lou and Herbert Hoover’s efforts to translate Georgius Agricola’s De Re Metallica – September 18, 1994.
- White Ash Mine Memorial Site Dedication
- Opportunities for Research in the History of Mining Law