David Campbell (Ph.D.) is research associate in the Department of Biological Sciences at the University of Alabama and attends Trinity Presbyterian Church in Tuscaloosa, Alabama.
Lyle D. Campbell (Ph.D.) is professor of Geology at the University of South Carolina Upstate and attends Providence Presbyterian Church in Spartanburg, South Carolina.
Chip Cates (M.S., P.G.) is an engineering geologist and attends Trinity Presbyterian Church in Tuscaloosa, Alabama.
Gregg Davidson (Ph.D.) is associate professor of geology and geological engineering at the University of Mississippi and attends Christ Presbyterian Church in Oxford, Mississippi.
Keith Long (Ph.D.) is a geologist with the U.S. Geological Survey and attends Desert Springs Presbyterian Church in Tucson (Oro Valley), Arizona.
Richard F. Mercer (B.A.) is a retired petroleum geologist and attends Woodgreen Presbyterian Church in Calgary, Alberta, Canada.
Kent Ratajeski (Ph.D.) is assistant professor of geology at the University of West Georgia and attends Christ Church Presbyterian in Atlanta, Georgia.
Davis A. Young (Ph.D.) is professor emeritus of geology at Calvin College and attends Catalina Foothills Presbyterian Church in Tucson, Arizona.