Whilst trawling the web I found scanned images of 'History of the Borton and Mason families in Europe and America (c1908)' by Freeman Clark Mason 1851-1926 here:-http://www.archive.org/details/historyofbortonm1908maso
Sadly the .PDF version is only of scanned page images and the text version contains a lot of OCR errors. I am considering re-OCR'ing it (it's out of copyright) and making a 'proper' electronic copy of it. Anyone interested ?
There is also mention of the John Borton/Ann Kinton Bortons in another book on the Haines family:http://www.archive.org/details/ancestryofhaines00hain