Cindy, I don't know if these may help. I see FS has the the maiden name listed as Hillman (transcription error, I think).
Arnold Vital record of Rhode Island 1636-1850: First Series: births, marriages and deaths: a family register for the people, by James N. Arnold. Providence, RI: Narragansett Historical Publishing Company. Vol 5 Marriages, pg 5-9, reads: Edwards, Daniel, of Charlestown, and Lois Stillman, of Westerly, m. by elder Asa Coon, Sept. 16, 1797.
Same source, Vol 5, pg 5-20, son Daniel born to the above Oct 8, 1798. The entries on this page would appear to show Daniel and Lois having a son Joseph in 1782.
There is more than one man of the same name in R.I. in the approx same time period although there may also be transcription errors (whether in the record of births or marriage is uncertain).
Do the locations given in the marriage record provide info that may help you separate records for the different people?