I have a fairly extensive amount of families from Stanhope in my line but no Bainbridge lines. However I did look into one of the more prominent Bainbridge families - Emerson Muschamp Bainbridge, son of Cuthbert and Mary Bainbridge baptised Stanhope 24 SEP 1817. He married Annie Hudson 23 August 1839, Newcastle-upon-Tyne.
He was the founder of Bainbridge's Department Store now renamed John Lewis in Newcastle-upon-Tyne. The Stanhope area had a tradition of naming boys after friends and neighbours as evidenced in Emerson Muschamp. I have come across the same naming trends in North Carolina.