REMOVE

1. GMO
2. Kimberly
3. Cannon, L.G.

WHAT

1. Depot (3)
2. Operations (2)
3. Structures (2)
4. Engineering (1)

WHERE

1. Copper Flat (2)
2. Central Ely (1)
3. Cherry Creek (1)
4. Cobre (1)

WHO

1. Davidson, H.A. (3)
2. Roper, F. (3)
3. Backe, C.W. (2)
4. Boese, P.R. (2)

WHEN

1. 1910s (4)