REMOVE

1. Caboose
2. Whitmore, J.P.

WHAT

1. Operations (3)
2. Coal (2)
3. Coal Tower (2)
4. Crane (2)

WHERE

1. Cherry Creek (2)
2. Currie (2)
3. East Ely (2)
4. Shafter (2)
5. Warm Springs (2)

WHO

1. Armstrong, W.R. (2)
2. Cordoni, A. (1)
3. Cordoni, A.V. (1)
4. Evans, R.A. (1)
5. Fondi, M. (1)
6. Mariani, J. (1)
7. Marsh, J.H. (1)
8. Peterson, H.M. (2)
9. Smith, C.R. (1)
10. Stark, A. (1)
11. Stork, A. (1)
12. Thomas, D.K. (1)
13. Workman, F.V. (2)

WHEN

1. 1960s (3)
2. 1970s (1)