Virginian Railway 2-10-10-2 number 801 leads 150 cars westbound doing 10 MPH at Roanoke Virginia on August 7th 1932. Otto Conrad Perry photo, from my collection.
SP 2-8-2 790 leads a 57 car westbound freight at Galveston Texas in 1936. Otto's speed estimate was 18 MPH, and he caught it with the rods down. Otto Perry photo, from my collection.
AT&SF 4-6-4 3456 leads train 2, The Scout, at Wichita Kansas in May of 1940. Note the clanging bell, and rods down, at 25 MPH. Otto Conrad Perry photo, from my collection.