Well Sandy you may be on to something so i re checked every thing....
Looking at Census he would be born about 1808 and in the IGI there is a birth of a Thomas Bland 6th April 1808 to Arthur Bland and Alice Welch.
now could he have a brother who married an Elizabeth who died and Elizabeth re married to Richard Worster. ?
So i looked on Alans Index, but cant find anything that would match !
Ian