Great Northern Railway Train 78 with helpers at rear of train near Summit, Montana in 1969.

Great Northern Railway wood caboose number X577, circa 1928. A view of the forward end of Great Northern Railway caboose X577 parked at an unknown location. Photo by J.M. Fredrickson. Other Subject Classes: wood caboose.

Great Northern Railway work train on Gassman Coulee bridge at Minot, North Dakota in 1969. Other subject classes: Bridge

Great Northern Steam Locomotive 840, Class C1 and Caboose X549 in Hillyard, Washington, undated. Photograph by Wade Stevenson.

Lewis & Clark Railway steel caboose number 430 at Moulton Falls, Washington, on October 9, 1988, with Northern Pacific monad. Photo by J.M. Fredrickson. Other Subject Classes: steel caboose.

McCloud River Railroad (MR) caboose 029 with Caboose 033 by the freighthouse at McCloud, California, July 1955. Other Subject Classes: Caboose

McCloud River Railroad (MR) caboose 101 at McCloud, California, undated. Other Subject Classes: Caboose

McCloud River Railroad (MR) caboose 931 behind MR 29, a DRS 6-6-1500, at McCloud, California, undated. Other Subject Classes: Caboose

McCloud River Railroad (MR) caboose 931 behind MR 29, a DRS 6-6-1500, at McCloud, California, undated. Other Subject Classes: Caboose

McCloud River Railroad wide-vision steel caboose number 101 at McCloud, California, on August 17, 1977, built by International Car. Photo by J.M. Fredrickson. Other Subject Classes: steel caboose.