Ludlow Massacre (1914)
- Video: Woody Guthrie Ludlow Massacre 283748
- Video: Colorado Experience: Ludlow Massacre - Rocky Mountain PBS 283746
- The Ludlow Massacre: Bitter and Prejudiced In the Extreme - CD 4/22 283747
- Ludlow Massacre - Wikipedia 283742
- Colorado Coalfield War 1913-14 - Wikipedia 283743
- Mother Jones (1837-1930) - Wikipedia 283745
- In the Hot Seat: Rockefeller Testifies on Ludlow, May 1915 283744