Yesterday, I had a look in our files and we do have some information on the Townsend family. Of great interest are the wills of William Townsend and Elizabeth Salmon (Thomas) Townsend. There are also some death certificates, and past compilations of the man's history, as then known.
Of greatest interest was the statement in William's will that Elizabeth Salmon Thomas was his second cousin, and that he had a "bona fide belief" that his second wife was deceased at the time he married Elizabeth. I suppose that just shows what you could get away with at the time if you were a local community pillar. The very fact that he felt he needed to state this in his will shows that he had doubts as to the veracity of his statement, I feel.
Anyhow, I will sit down with the files and add in missing information (such as dates of marriages and the like). I think a transcription of the wills will be interesting.