"O" gauge is the most light hearted and joyful of all the various forms of model railroading. Enthusiasts make a virtue of reliving the simpler days of childhood, staying in touch with that wide eyed wonder that kids have, when everything is new and exciting and fun. "O" gauge is often simply referred to as referred to as "Lionel," after Joshua Lionel Cohen, who founded the most famous of toy train companies in 1901, but there are several other manufacturers as well. It also sometimes gets called "Tin Plate" after an early type of train made in this gauge. Call it what you will, these layouts bring more happiness per square foot than any other type of railroad enthusiasm.

"O" gauge model train layout situated in the main display building.

In 2012, TTM commissioned this delightful "O" scale model of the Longhorn & Western depot, formerly the Southern Pacific depot located in Converse, Texas, on the outskirts of San Antonio. It was built by master modeler James Hipp of Perasall, Texas.

"O" scale donation by Dave Botts

When you come out and visit the museum, you and every member of your family, young and old, will enjoy the sights and sounds of these trains. The display is a work in progress. Anyone in the hobby will tell you, no model train layout is ever truly finished!