Can Anyone Help ME Find More Information for Joanna Andrews

I would like to know more about my ancestor Joanna Andrews b 17 Jan 1733 in east
Greenwich, Kent Co., Rhode Island d 4 Jun 1787 in Exeter, Rhode Island. The d/o
Benoni Andrews & Rebecca LNU. DOB for both-UNK Joanna Andrews married John Joslin
b 9 Sept1754 in West Greenwich, Kent, Rhode Island. I am just not finding the information I would like for my family genealogy. Can any one help me? Who are the parents of Benoni Andrews? And what could be Rebecca's last name? Appreciate any help I can get, thanking you in advance.

Maxine