Missouri Speleological Survey
The Gregory Tex Yokum
Certificate of Appreciation
The purpose of the Gregory “Tex” Yokum Certificate of Appreciation is to express appreciation to people, other than cavers, who in some way have demonstrated support of the goals and objectives of the MSS.

Past recipients:
| Spring 1976 Dr. Robert Leestamper Winter 1977 Gene and Terry Balsman Winter 1977 John Danforth Spring 1977 George Melbar Fall 1977 President Jimmy Carter Fall 1978 Don Edwards Winter 1979 Harry Thiltgen Winter 1979 Blanchard Springs Caverns Spring 1979 John Martin Spring 1979 Russ Campbell Fall 1979 Police Chief of Waynesville Winter 1980 Buddy Rauckman Spring 1980 Stan Piekarski Spring 1980 Charles Becker Spring 1980 Jerry McBride Spring 1980 Scoop Usher Spring 1980 Al Mueller Spring 1980 Pam Rice Fall 1981 Ozark National Scenic Riverways Winter 1984 Mrs. Lee Peterson Winter 1985 Fred Lafser Spring 1985 Kitty Hale Spring 1987 John E. Wiley, Dept. of Conservation Winter 1991 Paul Nevatt, owner Breakdown Cave Winter 1991 Clarence Hall, owner Lon O’Dell Memorial Cave Spring 1991 Tom Sowers, owner Rollins II Cave Fall 1991 Babler State Park Winter 1997 George & Laura Berry, owners of Berry Cave, Pulaski Co. Winter 1997 Mr. & Mrs. Gene Smith, owners of Saltpeter Cave, Phelps Co. Winter 1997 Namen & Mary Bolinger, owners of Tunnel / Spring Caves, Pulaski Co. Winter 1997 Staff at Meramec State Park and Onondaga State Park Spring 1997 Sullivan Chamber of Commerce Spring 1997 Department of Natural Resources – Geological Survey Spring 1997 State Parks (Onondaga, Meramec & Mastodon) Spring 2006 Alberta Zumwalt Spring 2006 Terry Shultz, Cambell Cave, Waynesville Spring 2006 David Harbough, Tunnel Cave, Waynesville Spring 2017 Brent Buerck, City of Perryville Spring 2017 Shauna Marquardt, USFW Fall 2019 Dennis Hogan, St. Louis County Parks Spring 2022 Neal Humke, LAD Foundation Spring 2022 Denise Henderson Vaughn Spring 2023 Brian Wilcox, Missouri State Parks Fall 2025 Shelly Colatskie, Missouri Department of Conservation |