hi the answer to your grand parents is they were still in derby in 1901 but by 1911 they are living at oundle cottages pickwell oakham ,i am not sure when they moved but they then went to braceborough lincs they are both buried in bracebrorugh church yard there son george william and his wife mary and ther son henry are also buried there there also had a son called john joseph who married lottie strafford and a son called james harrison jebb who married helen cunningham crook who are my grand parents .james harrison jebb who married grace bown his father was called henry Jebb and his mother was called mary haynes nee holbrook ,henry's father was called james harrison jebb and his mother called martha haynes (martha and mary henry wife were sisiter in laws mary was married to martha's brother henry ,and married henry her nephew after she was widow) james harrison jebb father was john jebb who married hannah caulton ,john jebb father was francis jebb who married mary harrison, who is the daughter of francis harrison of nottingham