Hello, I am also researching this name. My great-great grandmother was Margaret Hindmarch (born c1843 in Sunderland and married James Wilson Hogarth in 1863. Margaret's parents were Thomas Hindmarch and Margaret Milner who married in 1840 in Sunderland. Thomas was born c1825, but I have been unable to find his baptism. I do however know that his father was also a Thomas. I would be very interested to hear from anyone with information on this line. At Thomas' marriage in 1840 his occupation was recorded as Superintendent of the Durham Railway. Does anyone know if records exist for this railway and where I might find them? Any help greatly appreciated, Mark Etheridge.