Trevor used to work on farms doing odd jobs like threshing corn and sawing timber, but his owner thought he was old-fashioned and sent him to the scrapyard. Edward luckily befriended him and convinced Rev. Charles Laxey to purchase him. Trevor now lives in the Wellsworth vicarage orchard, but is often borrowed by his driver Jem Cole to do odds jobs and to appear at various events such as steam fairs.
Bio in the television series
Edward and Trevor helped the vicar organize a garden party to raise money for a seaside trip for underprivileged children.
Trevor is very friendly and gets along well with the engines. He is also helpful and ready to give anybody advice. Trevor loves children in particular, especially giving them rides in his cart.
Trevor's television series model did not have moving eyes until the third season.
There is a large scale model of Trevor as he was seen in some of the Pack episodes.
"I'm Trevor, they're going to break me up next week." "What a shame!" said Edward. "My driver says I only need some paint, Brasso and oil to be as good as new," Trevor went on sadly. "But it's no good. My master doesn't want me. I suppose its because I'm old fashioned." Edward snorted indignantly. "People say I'm old fashioned. But I don't care. The Fat Controller says I'm a really useful engine." "My driver says I'm useful too," replied Trevor. "I sometimes feel ill, but I don't give up like these tractors. I struggle on and finish the job. I've never broken down in my life!" he ended proudly.'"
— Trevor introduces himself to Edward, Saved From Scrap, Edward the Blue Engine
ERTL (normal, scrap Trevor with flatbed and miniature; all discontinued)