by American Railway Engineering Association

1927

by American Economic Association

1926

by Daughters of the American Revolution. Continental Congress

1920

by Association of American Railroads

1942

by American Railway Association

1905

by American Transit Association

1908

by American Railway Development Association. Meeting

1928

by Association of American Railroads. Bureau of Railway Economics. Library

1939

by American Association of Passenger Traffic Officers

1956

by American Institute of Weights and Measures

1928

by Association of American Railroads. Communications Section

1925

by American Economic Association. Annual Meeting

1927