Jim was the number 6 on the Mid Sodor railway who was later discovered at the Peel Godred Aluminum works.
Not much is known about Jim. He was built around 1900 by Kerr Stuart Wren and likely arrived on Sodor the same year or the year after. He worked on the Mid Sodor Railway until it closed in 1947. Jim was then sent to the Peel Godred Aluminum works a year after Stuart and Falcon. After Stuart and Falcon were sold to the Skarloey Railway in 1952, he was left as the only operating engine until the place declined and closed down between 1966 and 1967.
To avoid being scrapped, the manager tried to sell Jim to another railway, but they didn't want to go through the trouble of giving Jim an overhaul, as Jim as wearing out. The manager still did not want Jim to be scrapped, even until the last day came. The manager told Jim that it would by likely the transfer yards would be demolished and the rails would be ripped up, so Jim couldn't be in his shed. The manager told him there was an old military bunker that hadn't been used in years, where he would be put, so if anyone would decide to buy him, they could just pull him out.
Later, Jim was lifted off the rails and lifted onto a truck and went to the bunker. He would not see the light of day until 50 years later. Henry had heard his voice, and Oliver, Jack, and Alfie were trying to find the source of it when Oliver fell through the ground, down into the bunker. Jim was then restored in the spring of 2017 and was given to the Skarloey Railway for work.
Jim's model was made by Sodor Workshops.
Jim is based on the Kerr Stuart Wren "Skylark" locomotives.
Jim appears to be very friendly. He gradually became hard of hearing due to his work with dynamite but it was repaired in 2017.
- The Search for Smudger (mentioned)
Jim's model was used for an engine in Duncan's story for The Eyes. However, this is not intended to be Jim.