I can tell you where Roger and Agnes come from
"Lieutenant Joshua Hewes; a New England pioneer, and some of his descendants, with materials for a genealogical history of other families of the name, and a sketch of Joseph Hewes, the signer"
https://archive.org/stream/lieutenantjoshua00putn#page/10/mode/2up pp. 9-11
top of page 11 Roger Hewes had John and the burials of Roger & Agnes.
The problem with this as I see it, is that John doesn't seem to have a Thomas. John names his brother Thomas in his will, although I suppose said Thomas could have been born 1563 just before the registers began.