Author
Derks, Scott
2
Lauck, W. Jett 1879-1949
2
United Mine Workers of America
2
United States Anthracite Coal Commission
2
Aldrich, Nelson W. 1841-1915
1
Falkner, Roland P.
1
Great Britain. Board of Trade
1
McGuire, Laurence M. D.
1
Nearing, Scott, 1883-
1
New York Factory Investigating Commission
1
Smith, Tony
1
United States. Bureau of Foreign Commerce
1
United States. Congress. Senate. Committee on Finance
1
United States. Department of State
1
Wagner, Robert Ferdinand, 1877-
1
Wright, Carroll Davidson, 1840-1900
1