I'm also looking for Browns in Durham- namely John Henry b.8 Jun 1856, Sedgefield, Dur.;m. Francis A. Oyston d. unknown; Johns parents were James and Alice - I haven't found any siblings for John.
John and Francis had three children; Abraham b. Mar 1881, Margaret b. Jan 31, 1883 & Joseph b. abt 1885
I hope this rings some bells for you or someone else online - Barb