There are many interesting anecdotes about the evolution of the 'scow' genre, but none ever brought as much to the table as Sam Merrick's comprehensive history of the early evolution of the scow. He later titled it as 'The International Seawanhaka Cup: Midwife to the Scow'. I just stumbled on the original printing of this document in a 1983 edition of the NCESA Reporter. 'NCESA' are the National Class E Scow Association. Most of that copy of the Reporter was written by Sam, including interviews with Buster (Walter) Johnson, and Harry Melges, Senior. There are other interviews, as well, including a piece by Mike Meyer. Here is a .pdf file which will show the entire 48 page edition of that Reporter:
Give yourself plenty of time to read it.
Sam Merrick was a lifelong participant in E scow racing, and served as the Commodore of the NCESA in the 1970s.
The E scow class website is at: http://www.e-scow.org.