Hello Jean
Thanks for the Mary Mew information.
I have two Richard Mew's born in Marden
1.born 26 Mar 1795 christened 20 April 1795 parents John and Sary
2.born 2 May 1805 parents John and Sarah.
It is possible that Sary is actually Sarah and perhaps the first child died.
John and Sarah also had the following children Lucy, Mary, Harriet and Teling. So far I have not been able to tie any of them up with my relatives, but as you suspect it is likely they are connected.
Kind regards David