I recently bought the marriage cert of my g. grandmother in the hope it would help me find the names of her parents. The fathers name is on cert as John Weatherall, Ann (g.grandmother) was born 1867? says on cert she married in 1887 aged 20yrs. I have been trying to find her on 1871 census, but have been unsucessful. They came from Witton -le wear according to my mother, so I have just been looking at Co Durham. Can anyone tell me why I can't find her?