Howard Oakley Sharp
Thomas Eugene Avery
Toni Schenk
Lyle G. Trorey
William Kenneth Kilford
Ralph Oliver Anderson
Jie Shan
Donald R. Lueder
Cecil Augustus Hart
Richard Finsterwalder
Michigan. Geological Survey Division.
Edgar Falkner
R Daniel
Oregon State Planning Board.
Ajia Kōsoku Kabushiki Kaisha
Canada. Topographical Survey.
Gomer T. McNeil
Talbert Abrams
Otto von Gruber