Mount Vernon Avenue Association; U.S. Army Corps of Engineers; U.S. Bureau of Public Roads; Clarke, Gilmore; Downer, Jay; Toms, R E; Johnson, J W; Simonson, Wilbur; McNary, J V; Barton, Clara; Mount Vernon Ladies Association; Garden Club of America; Daughters of the American Revolution; United Daughters of the Confederacy; Colonial Dames of America; Association for the Preservation of Virginia Antiquities; McMillan Commission; Gould, Jay; Merritt-Chapmann and Scott Corporation; Public Roads Administration; National Park Service; Olmsted, Frederick Law; Eliot, Charles W; Harlow, M B; Fox, E W; Agnew, Park; Smoot, William B; Smoot, J C; Hume, Frank; Snowden, W H; Ridley, C W; Reavis, John; Downham, E E; Hains, Peter C; American Civic Association; National Council for the Protection of Roadside Beauty; Callahan, Charles C; Carlin, C C; Moore, Charles; Campbell, Philip H; MacDonald, Thomas; U.S. Congress, House Committee on Roads; Wilson, P St, J; National Capitol Park and Planning Commission; Alexandria Chamber of Commerce; MacDonald Construction Company; Westchester Electrical Equipment Company; Donn, Edward W; Moore, R Walton; Swanson, Claude; Cramton, Louis; Lozer, Ralph; James, E W; Nye, Henry C; Holley, George G; Day, Paul W; American Concrete Institute; American Association of State Highway Officials; Smoot Sand and Gravel Company; Vincent Schiavi; Sixth International Road Congress; Hale, Arthur; Somervell, Brehon; Stoneyhurst Quarries; American Bridge Company; Bethlehem Steel Company; Kalman Steel Company; Woodstock Granite Company; Kennedy, Tony; Haller, Louis; McDougald Construction Company; Roberts Paving Company; Edgie Russell Company; Kibbey Engineering Company; Alexandria American War Mothers; A. Gude Sons and Company; Howell, Robert B; Simmons, Robert G; Dorsey, Alice B; Fess; Harry T. Campbell and Sons Company; Corson and Gruman Company; Delashmutt Brothers; Audubon Society; Begni del Piatta, Ernesto; Weiss, Marion Gail; Manfredi, Michael; McKim, Mead and White; Calhoun, Audrey; Undeland, John; Wirth, Conrad; Eisenhower; Leach, Sara Amy, project manager; McCloud, Gary, field team; Ratcliffe, Peter, field team; Gala, Michael, field team; Lupyak, Ed, field team; Marconi-Betka, Anna Maria, field team; Mackey, Tim, project manager; Christianson, Justine, transmitter; Young, Kelly, transmitter; Croteau, Todd, delineator; Lowe, Jet, photographer; Boucher, Jack E, photographer; Dawson, Robert, delineator; Davis, Timothy, historian; Kucher, Michael, historian; Wentzien, Jennifer, historian; Ratcliffe, Peter W, delineator; Mackey, Tim, delineator; Gala, Michael, delineator; Lupyak, Ed, delineator; Marconi-Betka, Anna Maria, delineator; Dawson, Robert, delineator