REMOVE

1. Bulletin
2. Accident
3. Copper Flat

WHAT

1. Operations (2)
2. Steam (2)
3. Correspondence (1)

WHERE

1. Ely (2)
2. Keystone (1)
3. Robinson Canyon (1)

WHO

1. Cannon, L.G. (2)
2. Elmore, W.R. (2)
3. Vanderhoef, E.E. (2)

WHEN

1. 1910s (2)