T. J. Shields
United States. Congress. House. Committee on Public Buildings and Grounds
François Cointeraux
T. Z. Harmathy
Glenn P. Corbett
Charles Gilbert Hine
R. E. H. Read
Institution of Engineers of Ireland.
J. K. Freitag
Dennis P. Nolan
Feng Fu
C. S Bajwa
Gypsum Association
Claus Koeppel
United States. Congress. House. Committee on Rules.
Expanded Metal and Fireproofing Co.
Metallic Roofing Co. of Canada.
Franz Joseph Alexander Mayer
National Fire Proofing Company.
S. H. Ingberg