Harold A Underhill did a set of plans for the Helen Barnet Gring, a four master out of Portland, Me. It has been years since the last time I knew of their availability, but I believe they were from Brown, Son & Ferguson Glasgow, Scotland, who also published Underhill"s books.
The book, "This Was Chesapeake Bay" by Robert H Burgess, Cornell Maratime press Inc., has a chapter on " Sailing coal out of Hampton Roads" The following four masters are mentioned; Edward L. Swan, Doris Hamlin, Albert F. Paul, Purnell T. White( very well documented in Burgess' book, "Sea, Sails, and Shipwreck career of the four masted schooner Purnell T. white, which includes lines drawings, and many photos),Velma Hamlin, and the Ida S. Dow.
Pete