Number 95589 was originally built as a "Vanderbilt" tender to a Rock Island 2-8-2 "Mikado" engine. It was rebuilt in the mid-1920s to a water tank car, and then in 1957 converted to a snow plow. One-third of the tank was removed and a fabricated wedge was attached to the tank. Remaining two-thirds of the tank was filled with ballast to add weight and stability to the plow. One or more engines pushed the plow through snow. Originally built for the Rock Island Line, it was conveyed to the St. Louis Southwestern when the former line was sold and broken up. Donated to TNMOT in 1995 by the Southern Pacific Railroad.