Thomas (originally numbered 108) has had nine other brothers and sisters that were built between 1913 and 1916. There were were all LBSCR E2 tank engines numbered 100 through 109.
Timothy
See: Timothy
107
107 was built in 1915 and was a prototype E2. However he was considered a close brother of Thomas as his other brothers and sisters were cruel to him. 107 is described as a kind, but lazy tank engine that doesn't like too much work.
In May 1915, 107 wished Thomas the best and wished him good luck before he was shipped to Sodor, but was instead shipped to Ireland and Thomas, who was meant to go to Ireland, was shipped to Sodor. It was eventually decided that Thomas could stay on Sodor and 107 could stay in Ireland.
As told he did work in the same Meat Factory where Thomas was originally set to work. However, it is unknown what happened to 107 during the decline of steam during the 1960s. Going by real life history, as the real 107 was the first E2 to be withdrawn from service in February 1961 and scrapped later that year, it can be assumed that he was as well.
106 and 109
106 and 109 were two of Thomas' other siblings that were in Southern England awaiting new jobs in 1915.
Assuming they are based off their real life counterparts, 106 was withdrawn in October 1962 while 109 was one of the last E2s withdrawn in April 1963. Both were scrapped following being withdrawn.
Other E2s
There were six other E2s numbered 100 through 105. There were not seen or mentioned in 1915, implying they had already gone to new jobs by the time Thomas and his other siblings were ready to roll out for delivery.
After Thomas arrived on Sodor later that year, he told Edward that his other siblings other than 107 were cruel to him due to his clumsiness and would often call Thomas a 'goof ball' and a 'clown'.
Appearances
The Engines of Sodor
Season 3
- Duke's Reunion (mentioned)
NWR Origins
Season 1
- Tank Engine Mixup (107 appeared and spoke, 106 and 109 cameo)
- Two's Company (107 and possibly 109 appeared in flashback, 107 does not speak and 109 possible cameo)
- Great Western Escape (106-108, Credits still)
Thomas1Edward2Henry3's Remakes
- Edward and Gordon/Edward Helps Out (one appears; not named; does not speak)
- Stepney Gets Lost (106 and 107 only; scrap model')