From Australia. My family line (Dad's mother's paternal).from Aust. to Eng. All spelt Duesbury. Cas Sparks(me) - Wm Sparks(Dad) - Jean Duesbury(Nana) - Frederick D.(b.Aust/lived Bris.) m. Ellen Shirlow - Samuel D.(photographer) married Esther Pryse (first Aust. immigrants) - Samuel D.(copperplate engraver?) m. Sarah Bradley - Wm D.(potter) m. Elizabeth Edwards - Wm D.(b.7Sept1725/potter) m. Sarah James. Hope it is of some help. I have some imfo on other Duesburys in Aust.