I have received my reply from the Rhode Island State Archives, and regretfully they did not have a marriage record for Thomas Sisson, in any town in Rhode Island. They suggested I try Massachusetts. But they said they checked their Probate Records "and found the following reference: Mr. Sisson & probably Jane Card - mentioned in a will of wife's father filed 1717, Newport, Volume 6A, pp. 209-211. They gave me an address in Newport to email for this. I don't know why they just said Mr. Sisson, they knew I was looking for Thomas. I am afraid this will of Joseph Card to a Sisson son-in-law will turn out to be to Richard Sisson who married his daughter Ann. Mary Jo