Haupt, Herman, [96]

Knight, ——, [83]

Latrobe, Benjamin H., [82], [83], [85], [87]

Long, Stephen H., [85]

Meigs, M. C., [96]

Morris, Tasker and Company, [94]

Mount Clair shops, [83], [89], [92]

Patapsco Bridge and Iron Works, [92], [95]

Phoenix Iron Works, [92]

Pratt, Thomas W., [91]