Great Northern Dispatchers Record of Movement of Trains (trainsheet) for the Cascade Division 2nd Subdivision, March 9, 1961 from the Dave Sprau Collection.

Great Northern Dispatchers Record of Movement of Trains (trainsheet) for the Cascade Division 2nd Subdivision, March 8, 1961 from the Dave Sprau Collection.

Great Northern Dispatchers Record of Movement of Trains (trainsheet) for the Cascade Division 2nd Subdivision, March 7, 1961 from the Dave Sprau Collection.

Great Northern Dispatchers Record of Movement of Trains (trainsheet) for the Cascade Division 2nd Subdivision, March 6, 1961 from the Dave Sprau Collection.

Great Northern Dispatchers Record of Movement of Trains (trainsheet) for the Cascade Division 2nd Subdivision, March 5, 1961 from the Dave Sprau Collection.

Great Northern Dispatchers Record of Movement of Trains (trainsheet) for the Cascade Division 2nd Subdivision, March 4, 1961 from the Dave Sprau Collection.

Great Northern Dispatchers Record of Movement of Trains (trainsheet) for the Cascade Division 2nd Subdivision, March 31, 1961 from the Dave Sprau Collection.

Great Northern Dispatchers Record of Movement of Trains (trainsheet) for the Cascade Division 2nd Subdivision, March 30, 1961 from the Dave Sprau Collection.

Great Northern Dispatchers Record of Movement of Trains (trainsheet) for the Cascade Division 2nd Subdivision, March 3, 1961 from the Dave Sprau Collection.