Hi I also have a Joseph Sunderland he would be my GR GR Grandfather, his wife was called Tamer. I know he died around 1873. One of his sons was called Joseph (b 18/12/1858). He was the brother of my Gr Grandfather Amos (b approx 1865) in Keighley. Amos married Ester/Hester Stansfield. Possible coincidence?