- HAL3331
- Hagerty Consulting1
- Hair, Keith1
- Halle, Oliver G., 1946-1
- Hamilton Maxwell, Inc. (New York)1
- Harris & Ewing1
- Harris, Frederic R1
- Hazzard, William W., 1793-18611
- Hemperley, Marion R.1
- Henry H. Ahrens (Charlotte, N.C.)1
- Histed1
- Historic American Engineering Record1
- Holcomb, Phil1
- Holtzberg, Maggie1
- Hooks, Byron1
- Hopkins, R. R.1
- Hopps, Richard B.; Bryan, M. Julia1
- Howard, Walter1
- Hyde, Barbara1
- International Association of Bridge, Structural, and Ornamental Iron workers1
