Bharat Singh
Nick Capachi
William N. Morgan
C. L. Crandall
Jeffrey Kastner
Halbert Powers Gillette
Daniel Benn Atcheson
C. Frank Allen
W. M. Flinders Petrie
Beverly Pepper
Burt G. Look
Heywood Sumner
Syed R. Qasim
John Hurd
Nichols, Herbert L.
Whitney Clark Huntington
Andy Goldsworthy
Ellwood Morris
American Underground Construction Association. Technical Committee on Backfilling and Contact Grouting of Tunnels and Shafts.