The most recent issue of Classic Trains (the one with the Lackawanna Fs on the cover) has a nice article with pictures done by J. David Ingles on a trip through Sapulpa and Tulsa, OK in 1960. F-units and Alco FA/FB1s on through freights, GP7s on locals, and Fairbanks-Morse H10-44s with a brake sled at Cherokee Yard (Tulsa was the F-M maintenance point for the railroad). Several other great articles in this issue, but the Frisco piece is enough to get this copy.