Hi
I think Joe is probably right, there aren't many ideas left to exploit...
I thought I'd have one last stab at the earlier Joesph/Guiseppe, using the name variant Seidenari, there doesn't appear to anything else close.
Source, IGI (submitted record), submitter has left his contact details:
Rosa Seidenari, b. 1767, Bastiglia, Modena.
Married Luigi Malagoli 1805, Bastiglia.
Source, Family Search:
Paolo Seidenari b. 1794, Concordia, Modena. d. 19 June 1868.
Spouse, Virginia Mazzola.
Parents, father Luigi, Mother Antonia Varini.
There are quite a few on the family search site, though I would suggest they are only guides as most of them are probably submitted. Some are born in the early 1800's, i.e. their parents must have been born in the late 1700's, there may be a clue or two, if you haven't already searched there.
Regards
Geoff