- Curt Sanburn
- Loren McIntyre
- Oliver Lutz Radtke
- David Middleton
- The Royal Geographic Society
- Leslie;National Geographic Society (U.S.) Allen
- Linda J. Schupp
- Errol Louis
- David H.; Smith, Robert W. Devorkin
- Malcolm Bull
- Robert Glenn Ketchum
- Pierre Briant
- Maggie Morrison
- Shelton Johnson
- Elizabeth Newhouse
- Anne W. Tucker
- Willi Rose
- Brent Landau
- Thomas Eller
- Mark Kelley