D&RGW PA1 6013 leads train number 10, The Yampa Valley Mail, near Plainview Colorado sometime in the 1960s. Otto Perry photo, from my collection.

Louisville & Nashville train number 99, the Pan American, is departing Louisville Kentucky at 25 MPH in 1934. Otto Perry photo, from my collection.

D&RGW train 9 is leaving Denver Colorado in 1949. Otto Perry photo, from my collection.

The Royal Gorge, D&RGW First #1, is departing Denver Colorado in 1957. Otto Conrad Perry photo, from my collection.

A thirteen car Dixie Flyer, NC&SL train 94, is seen near Chattanooga Tennessee on June 20th 1950. Otto Conrad Perry photo, from my collection.

Southern Railway train number 46, The Tennessean, is led by ALCO DL-109 6401 as it leans into the curve at Johnson City Tennessee in 1950. Otto Conrad Perry photo, from my collection.

Bringing up the rear of the World's Fair Daylight, a 13-car train of privately-owned passenger cars – all painted in Daylight red and orange – heading to the 1984 World's Fair in... (more)

Lots going on in this Minot North Dakota scene on July 11th 1956. Otto Conrad Perry photo, from my collection.

Northern Pacific train number 407 is seen departing Portland Oregon on July 29th 1940. Otto Perry photo, from my collection.

Amtrak Train #31, the westbound National Limited, arrives at the iconic Kirkwood Depot.

Atchison Topeka & Santa Fe train number 19, The Chief, is departing Barstow California with seven cars in 1933. Otto's speed estimate was 12 MPH. Otto Conrad Perry photo, from my collection.

Western Pacific 4-8-2 171 is seen at Oroville California in 1938. Otto Perry photo, from my collection.

For reasons unknown SP train number 19, the Klamath, has arrived Gerber California 8 hours & 15 minutes late on July 30th 1940. Otto Perry photo, from my collection.

The Royal Gorge, D&RGW train 1, is departing Denver Colorado in 1953. Otto Conrad Perry photo, from my collection.

Union Pacific train number 9, the City of St Louis, is seen near Buford Wyoming in 1951. Otto Perry photo, from my collection.