by National Association of Retail Druggists (U.S.)

1925

by Young Men's Christian Association of the City of New York. Railroad Branch. Library

1905

by Association of American Railroads. Signal Section

1926

by American Bankers Association

1921

by National Association of Retail Druggists (U.S.)

1930

by American Bankers Association. Convention

1920

by Association of American Railroads. Bureau of Railway Economics

1912

by International Railway Congress Association

1928

by International Railway Congress Association

1924

by American Railway Engineering Association

1920

by American Railway Engineering Association

1920

by American Library Association. General Meeting

1914