REMOVE

1. Steam
2. Derailment
3. Keystone
4. Nesbitt, C.

WHAT

1. Accident (2)
2. Correspondence (2)
3. Damage (2)
4. Freight (2)

WHO

1. Beem, H.J. (2)
2. Colaizzi, C. (1)
3. Evans, H.V. (1)
4. Fravel, H.A. (1)

WHEN

1. 1930s (2)