- American Public Transportation Association1
- Barsony, Steven A.1
- Confederate States of America. War Department1
- District of Columbia. Department of Public Works1
- Dulles Corridor Rail Association1
- Edwards, David A.1
- Fraser, Ronald R.1
- Gifford, Jonathan Lewis1
- Hamburg, John R.1
- Mann, Charles Harrison, Jr., 1908-19771
- Mertz, Lee, 1920-19931
- Miller, Kathryn1
- Montgomery County Transit (Agency : Md.)1
- National Research Council (U.S.). Highway Research Board1
- Netherton, Ross De Witt, 1918-20101