I'm another new member of this clan. Rachel Chestnutwood married John Mock (Mack) in 1804 in the 5th District, Berks Co. PA. There's a lot of data on Rebecca's family but little on Rachel's. Is anyone following this branch ? I think they had a son Jesse, born 1814 who is my ancestor. Does anyone know what is meant by the "5th District"? I need a lot of help. Thanks,Jim, Calif.