The marriage in 1829 is between Edward Hall and Rachel Hall.
Samuel and Mary Hall also had a son Edward in 1806, so let's hope they weren't the ones marrying!
(Agewise, Edward is more likely than Rachel - especially as one of the IGI entries suggests he died in Penfield, South Australia in 1877!).
There is a Rachel, b Stockland, Dorset, 1812 (wherever Stockland is).
Richard