The second son of Henry Boulton (1732–1788) J.P., of Moulton, Lincolnshire, by his third wife, Mary (1734–1779), the daughter of D'Arcy Preston of Askham Bryan Hall, Yorkshire.
Bryan Adams | William Jennings Bryan | Bryan Ferry | Bryan, Texas | Bryan Robson | Bryan Singer | Luke Bryan | Bryan Josh | Bryan Wong | Bryan Sykes | Bryan | Bryan Fuller | Bryan Ansell | Bryan Scary | Bryan Cave | Daniel Bryan | Bryan Magee | Bryan Lee O'Malley | Bryan Hitch | Bryan Forbes | Bryan Brown | Bryan "Brain" Mantia | Bryan S. Turner | Bryan Roy | Brampton Bryan | Gary Bryan | Bryan Talbot | Bryan Sutton | Bryan Steele | Bryan Procter |
His mother was Matilda (b. 1298), also called Agnes, elder daughter and coheiress of Brian FitzAlan, lord of Bedale, Askham Bryan, and Cotherstone.