That may be my Thomas, i will see if i can find anything to confirm, however there are a few William and Thomas Blackmores floating around Devon.
Elizabeth Blackmore nee Page has been an issue for many, most trees have Elizabeth Hooper or Page Hooper whereas i looked for the best fit to the daughter Sarah Ann Blackmore and i believe William Blackmore and Elizabeth Page to best fit, all we know from death certificates over here of their sons and daughter Sarah Ann who all name parents as William Blackmore and Elizabeth Page, that's good enough for me, but not for others, anyway next find a wedding, i haven't so far, but there is a wedding for William Blackmore and Elizabeth Hooper that fits datewise which is why i think some researchers have decided she must be a hooper regardless of the facts under their nose, although once again i don't believe many actually have copies of the death or marriage certificates of the children, i did find a baptism for Elizabeth Page which i believe to be the right one but except it might not be.
Elizabeth Page Christened on 24.Aug.1803 St Davids, Exeter Devon, father James Page, Mother Elizabeth Ellicott.
James Page and Elizabeth Ellicott were married on 10 June 1803 @ St Thomas the Apostle, Exeter ,Devon.
There you go, that works for me, but happy to be shot down in flames if anyone has a better idea.