American Water Works Association Standards Committee on Fire Hydrants
American Water Works
Canada Foundry Company. Waterworks Dept.
Unknown Author
Lois Sicking
John M. Moore
National Fire Protection Association
United States. Bureau of Standards
United States. National Bureau of Standards.
Canada Foundry Company.
Henry C. Meyer & Co.
David Marlow
Canada Foundry Company. Waterworks Department
Walter L Picton
Donald Hubbard Sawyer
Murdock Mfg. & Supply Co