Larry G Musen
Heinz K. J. Lettnin
Meyer Saklad
R. A. Fulton
Dino A. Mattorano
George Davies
Health & Safety Executive
United States. Occupational Safety and Health Administration
Richard W. Metzler
Dennis Cotter
Arthur Carey
Beppe Conti
Home Office
William Brown Rooff
Michael F. Teresinski
C. N. Davies
Gary P. Noonan
R. H. Schutz
Unknown Author
Edwin Charles Hyatt