- Historic American Engineering Record21
- Spencer, Ethel3
- Phipps, C V2
- Springer, Emile2
- Almand, John1
- Bacon, Thomas W.1
- Baker, Willis P.1
- Billings1
- Bostick, John G.1
- Bothwell, D. E.1
- Bowers, Lloyd Guyton1
- Bryan, Isaac1
- Cox, Jesse1
- Crawford, Augustus1
- Fontaine, John1
- Kolb, Wilas1
- Landrum, John1
- Mason, William1
- McRainy, N.1
- Moore, William A.1