REMOVE

1. Steam
2. Boiler House
3. Roper, F.

WHAT

1. Engineering (1)
2. GMO (1)
3. Structures (1)

WHERE

1. East Ely Yard (1)

WHO

1. Backe, C.W. (1)
2. Boese, P.R. (1)
3. Cannon, L.G. (1)
4. Davidson, H.A. (1)

WHEN

1. 1910s (1)