As an aside, most Revolutionary to Second Barbary US privateer and naval schooners were generally of the Baltimore Clipper type, which according to Chappelle in 1930 one could easily be forgiven for thinking the hull was a rerigged Mediterranean xebec.

Chappelle's "The Baltimore Clipper: Its Origin & Development" may be of help here; tomorrow morning I'm going to call a librarian I knew many years ago who owes me a favor and see if I can get an interlibrary loan.