Just seen your enquiry of 2010 about Charles Knowles my great grandmother Mary Ann Knowles is the sister of Elizabeth
I have found Charles along with other family members. He was born jan 13 1805 in Doncaster buried oct18 1938 at wentworth he was a chemist. I did not know how he died. Very sad

Contact me at gareth0981@hotmail.com if you want any further info.