21. Kaplan Junk Yard, Yard No. 4, and Yard No. 2 from IHB Hill Collection: U.S. President's Railroad Commission Photographs Set: Chicago & North Western Railway: Chicago Terminal Division, Proviso Yards Location: Chicago, IL Proviso Yards Date: 1960 Format: Image Creator: Brotherhood of Locomotive Engineers (BLE) Photographer: Plock, H.G.
22. Taylor and Rockwell Streets Area Collection: U.S. President's Railroad Commission Photographs Set: Chicago & North Western Railway: Chicago Terminal Division, Proviso Yards Location: Chicago, IL Wood Street Yards Date: 1960 Format: Image Creator: Brotherhood of Locomotive Engineers (BLE) Photographer: Plock, H.G.
23. View East from Mannheim Road Bridge Collection: U.S. President's Railroad Commission Photographs Set: Chicago & North Western Railway: Chicago Terminal Division, Proviso Yards Location: Chicago, IL Proviso Yards Date: 1960 Format: Image Creator: Brotherhood of Locomotive Engineers (BLE) Photographer: Plock, H.G.
24. East End of Yard No. 2 Collection: U.S. President's Railroad Commission Photographs Set: Chicago & North Western Railway: Chicago Terminal Division, Proviso Yards Location: Chicago, IL Proviso Yards Date: 1960 Format: Image Creator: Brotherhood of Locomotive Engineers (BLE) Photographer: Plock, H.G.
25. Crest of Hump (upper and lower levels), Yard No. 5 Collection: U.S. President's Railroad Commission Photographs Set: Chicago & North Western Railway: Chicago Terminal Division, Proviso Yards Location: Chicago, IL Proviso Yards Date: 1960 Format: Image Creator: Brotherhood of Locomotive Engineers (BLE) Photographer: Plock, H.G.
26. South End Proviso Yard No. 9 Collection: U.S. President's Railroad Commission Photographs Set: Chicago & North Western Railway: Chicago Terminal Division, Proviso Yards Location: Chicago, IL Proviso Yards Date: 1960 Format: Image Creator: Brotherhood of Locomotive Engineers (BLE) Photographer: Plock, H.G.
27. Crest of Hump and General Yardmaster's Station, Yard No. 5 Collection: U.S. President's Railroad Commission Photographs Set: Chicago & North Western Railway: Chicago Terminal Division, Proviso Yards Location: Chicago, IL Proviso Yards Date: 1960 Format: Image Creator: Brotherhood of Locomotive Engineers (BLE) Photographer: Plock, H.G.
28. Eastward Below Crest of Hump, Yard No. 5 Collection: U.S. President's Railroad Commission Photographs Set: Chicago & North Western Railway: Chicago Terminal Division, Proviso Yards Location: Chicago, IL Proviso Yards Date: 1960 Format: Image Creator: Brotherhood of Locomotive Engineers (BLE) Photographer: Plock, H.G.
29. South End Proviso Yard No. 9 Collection: U.S. President's Railroad Commission Photographs Set: Chicago & North Western Railway: Chicago Terminal Division, Proviso Yards Location: Chicago, IL Proviso Yards Date: 1960 Format: Image Creator: Brotherhood of Locomotive Engineers (BLE) Photographer: Plock, H.G.
30. Main line and Maywood lead being worked on with a Burro Crane Collection: U.S. President's Railroad Commission Photographs Set: Chicago & North Western Railway: Chicago Terminal Division, Proviso Yards Location: Melrose Park, IL Date: 1960 Format: Image Creator: Brotherhood of Locomotive Engineers (BLE) Photographer: Plock, H.G.