1. Christopher A. Cooper is a Madison Distinguished Professor at the Western Carolina University, Cullowhee, North Carolina, USA.
2. Scott Huffmon is at the Winthrop University, Rock Hill, North Carolina, USA.
3. H. Gibbs Knotts is at the College of Charleston, Charleston, South Carolina, USA.
4. Seth C. McKee is at the Oklahoma State University, Oklahoma City, Oklahoma, USA.