I have researched this line. I descend from Emanuel's brother, Thomas Mabey (wife Esther Chalker). If you have not already had your questions answered, I have that Frances Mabey married Frederick Augustus Bowring in DecQ,1891 after her first husband, Charles Down, died earlier that year. She, then died in SepQ,1892. Charles Down and Frances had seven children. I would be happy to supply any other information that I have.