It was used by the T&G for hauling freight trains in branch lines throughout the state of Louisiana until 1954, when it was sold to the Magma Arizona Railroad and renumbered 7.

It was restored to operating condition and used to pull tourist excursion trips between Rusk and Palestine, Texas as No.

Thus, in 1917, the T&G created a new design of a 2-8-2 "Mikado" type and ordered it from the Baldwin Locomotive Works of Philadelphia, Pennsylvania, and it was built and delivered in October of that year as No.

As the 1950s began to progress, however, the T&G became one of many American railroads that decided to dieselize early on, and by 1954, all of their steam locomotives were withdrawn and sold off.

7 was also the most reliable unit of the roster when it came to running out of hills, such as the grade between Desert Well and the MAA-Southern Pacific interchange in Magma.

7 completed its last revenue freight assignment on September 4, 1968, making it surpass Denver and Rio Grande Western K-36 locomotives Numbers 483 and 484 as the last common carrier steam locomotive to be used in revenue service in the Southwestern United States by over a month.

7 was sold to Steve Bogen in 1969, who, in turn, donated it to Trans North of Superior, Arizona in 1972.

7 was only one of five steam locomotives the group had purchased and wanted to restore to operating condition as part of their efforts to reopen the TSRR as a tourist railroad.

It was shipped by rail to Hahn and Clay in Houston, Texas to be rebuilt and refurbished by a group of volunteers.

Boiler men, welders, and technicians took four years to repaint, repair, and replace components of the locomotive.

[5] In March 1978, the locomotive was moved to its new home base of Rusk, where it was fired up for the first time in less than ten years.

[9][10] Since 1995, however, the Federal Railroad Administration (FRA) has ordered that every active steam locomotive be inspected and overhauled every 1,472 days.

[14] In 2012, Iowa Pacific Holdings gained ownership of the TSRR, and they decided to have a group of volunteers finish the restoration of No.

201's flue time was close to expiring, and the railroad needed to keep a second steam locomotive on their active roster alongside No.

[15][16] Iowa Pacific also decided to revert all of their steam locomotives to their original revenue liveries, instead of leaving them in their TSRR colors.

400 was brought back under steam in April 2014, it was reverted to one of its older appearances as Magma Arizona No.