I found two later burials for Ann Yeowell and a Thomas Yeowell it may be Sue already has these but I'll post them anyway ...

Also I don't know if Sue can see the links.

This is Thomas and it's the right address Gloucester Street - burial 1876 at Hackney St John.
http://search.ancestry.co.uk/iexec?h...c=&pid=9467753

This is Ann and it's Caroline Street! but at Hackney St John 1877.
http://search.ancestry.co.uk/iexec?h...c=&pid=9467264

Caroline St could have been an hospital location or a relative's house I don't know.

Edit to say: They've put Caroline St, Clapton but I think that's wrong there was a Caroline Street off Hackney Rd (now Cadell St) and Gloucester St was off Hackney Road too.