Hi Carole,
I don't have a lot of information, and don't know if Mary Chamerlain was a spinster when she married Emanual.
IGI give a christening of a Betsey Brecknell on 2.8.1834 at Stockton on Teme, parents are named as Emanuel and Mary Brecknell, and IGI have a Mary Chamberlain and Emanual Brecknell marrying on 12 May 1838 in Kidderminster, and another child, Emma Brecknell being christened 13.6.1842 a Abberley, and parents are given as Emanuel and Mary Brecknell. So, that is what left me wondering if he had a marriage before Mary Chamberlain (also a Mary).