REMOVE

1. GMO
2. Ely
3. Duddleson, T.J.

WHAT

1. Operations (1)
2. Signals (1)
3. Union Swt. & Signal Co. (1)

WHERE

1. Cherry Creek (1)
2. Copper Flat (1)
3. Currie (1)
4. East Ely (1)

WHO

1. Cannon, L.G. (1)

WHEN

1. 1910s (1)