Alderman, E. S. Oklahoma City, OK
Altman-Rogers McAlester, OK
American Bridge Co. New York, NY
Amis Construction Co. Oklahoma City, OK
Austin Brothers Bridge Co. Dallas, TX
Barber, E. E. & Co. Ft. Smith, AR
Boardman Co. Oklahoma City, OK
Bras, Glenn E. Muskogee, OK
Brewer-McMichael, Inc. Holdenville, OK
Briscoe Construction Co. Stillwater, OK
Bybee Construction Co. Woodward, OK
Campbell Brothers Kansas City, MO
Cannady, H. L.
Canton Bridge Co. Canton, OH
Central Concrete & Construction Co. Canton, OH
Central States Bridge Co. Indianapolis, IN
Civilian Conservation Corps. (CCC) Washington, D.C.
Classen & Venable Beaver, OK
Collins, Tom Cushing, OK
Concrete and Steel Construction Co. Joplin, MO
Constant, C. S.
Crook, J. A. Falls City, NE
Diver, James B. Keokuk, IO
Dunning, Charles M. Construction Co. Oklahoma City, OK
El Reno Construction Co. El Reno, OK
Evans, S. E. Ft. Smith, AR
Fike, E. G. & Son Tulsa, OK
Fisher, L. S. Woodward, OK
Fisher Construction Co. Norman, OK
Ford, F. D. Cordell, OK
Frost Construction Co. Hydro, OK
Gaines Brothers Oklahoma City, OK
Gaines, Yeokum & Mackey Oklahoma City, OK
General Construction Co. St. Louis, MO
Gillioz, M. E. Monett, MO
Gragg Construction Co. Henryetta, OK
Green Beekman Oklahoma City, OK
Gudgel & McVey
Harris, Lee Cushing, OK
Haynes & Box
Henryetta Costruction Co. Henryetta, OK
Herber, Mike Ponca City, OK
Hopper, J. W. Oklahoma City, OK
Howard, C. K. & Co. Oklahoma City, OK
Hudson & Watson
Hughes, R. K. Tulsa, Ok
Hyde Construction Co. Enid, OK
Illinois Steel Bridge Co. Jacksonville, IL
J. B. Klein Iron and Foundry Co. Oklahoma City, OK
James Brothers Cordell, OK
James, Guy H. Oklahoma City, OK
James, W. L.
Jno. Gilligan Construction Co. Falls City, NE
Johnston, W. R. Weleetka, OK
Joliet Bridge & Iron Co. Joliet, IL
Kadane Construction Co. Frederick, OK
Kansas City Bridge Co. Kansas City, MO
Keck, G. E. Fairview, OK
Keliher Construction Co. Dallas, TX
King Bridge Co. Cleveland, OH
Landon, C. G. Oklahoma City, OK
Ledford & Way
List & Weatherly Kansas City, MO
Lyle Buckner, Inc.
Mackey, L. M. Wagoner, OK
Massillon Bridge & Structural Steel Massillon, OH
Master, E. E.
Mathews, J. O.
Merveldt & Lawson El Reno, OK
Midland Bridge & Iron Co. Kansas City, MO
Missouri Valley Bridge & Iron Co. Leavenworth, KS
Monarch Engineering Co. Falls City, NE
Montgomery, W. R.
Moore, J. A. Muskogee, OK
Moorman, C. C. Hominy, OK
Moran & Buckner Muskogee, OK
Muskogee Iron Works Muskogee, OK
Myers & Hunt
Myers, L. E. Dallas, TX
Nims & Frost Hydro, OK
Oklahoma Iron Works Tulsa, OK
Oklahoma Paving Co. Oklahoma City, OK
Oklahoma State Highway Dept. Oklahoma City, OK
Ottinger, T. C. Hinton, OK
Pan-American Bridge Co. Newcastle, IN
Park Ward Co. Oklahoma City, OK
Patterson Steel Co. Oklahoma City, OK
Pennsylvania Steel Co. Steelton, PA
Pharoah Co. Henryetta, OK
Pioneer Construction Co. Kansas City, MO
Plains Construction Co. Oklahoma City, OK
Poole, Lee & Sons Fairview, OK
Pyle, Duard Oklahoma City, OK
Raines, J. A. Muskogee, OK
Roberts & Fisher Norman, OK
Rochester Bridge Co. Rochester, IN
Rock, C. R. Construction Co.
Rucks-Brandt Construction Co. Tulsa, OK
Sampley, D. C.
Schlicter Bridge Co.
Sherman Machine & Iron Works Oklahoma City, OK
Southwestern Bridge & Culvert Co. Oklahoma City, OK
Standard Paving Co. Tulsa, OK
Stebbins Construction Co. Tulsa, OK
Stone Construction Co. Clinton, OK
Stone Johnson Co.
Stupp Brothers Bridge & Iron Co. St. Louis, MO
Sutherland, George Purcell, OK
Taylor & Majors Ardmore, OK
Thompson, Jim S. Oklahoma City, OK
Toledo Massillon Bridge Co. Massillon, OH
Topeka Bridge & Iron Co. Topeka, KS
Tway, R. R., Inc. Oklahoma City, OK
U.S. Dept. of Interior, Indian Affairs Washington, D.C.
Vincennes Bridge Co. Vincennes, IN
Virginia Bridge Co. Roanoke, VA
Watson, F. E. Ardmore, OK
Wenzel, Joe Hobart, OK
Western Construction Co.
Whitson & Kirby Ardmore, OK
Wichita Construction Co. Wichita, KS
Woodward Construction Co. Woodward, OK
Works Project Administration (WPA) Washington, D.C.