Good news; I just went to the Crewdson site, and there is some info there about Capt. Jas. Crewdson and the Mary Barrow.I think you will be excited to read about it.
I have also contacted my cousin, Dick (3 x's removed cousin) and told him about you.I think also what knowledge you have will be of great help to him.I am sure he will be as pleased with your info as you will be with his.There is an article in the site about the Rayon Gang, which my Great Grandfather was part of and helped to produce the first rayon in this country. There is an article on the Viscose Company in Marcus Hook, PA. It is a very educational site on the Crewdson lines.Please let me know how you make out.I am always interested in contact with other descendents of the Crewdson/Crowdson/Croudson line.