My maternal grandparents were Rolstones. My Great Great Great Grandfather was called Samuel Rolstone and was born in Bridford in 1827 He was married to Jane Taverner in 1849. They had 5 children - Matilda, Susanna, Sarah, Fanny and Henry James Taverner Rolstone (my GG Grandfather). Don't know if this helps you, there were quite a few Rolstones in the area, but they may well have been related to the Rolstones you are looking for. Please feel free to contact me if you wish.