Rob Not an answer to your question, but another 'missing piece'. The manuscript of 'Airs and dance tunes collected and constructed[?] by the Melodies Committee of the Newcastle Antiquarian Society, 1857-1887' is partially digitised on FARNE, and the following extract contains another reference to Lewis Proudlock or a reference to another Lewis Proudlock:
This particular part of the manuscript was copied down by John Stokoe and was taken from the John Smith manuscript, which is now lost. A note on page 125 of the manuscript reveals more about its origins. It reads, 'Airs and dance tunes transcribed from an old ms. book now in the possession of Mr. Lewis Proudlock of Longhorsley by Morpeth. Mr Proudlock received the book from Mr Fish of Angerton five or six years ago, that is about 1881, who bought it at a farm sale amongst some old books. The book is an oblong quarto of about 90 pages containing about 200 tunes many of them minuetts [sic.] and old fashioned hornpipes in 6/4 time. There are many of the old Northumbrian pipe tunes in it and I have copied verbatim from it into this book 20 tunes. On page 32 of the book is written in beautiful halftext 'John Smith's book 1752' and on page 51 is the Keel row with 10 variations as here copied. So far as I know or have searched, this is the earliest copy of our Tyneside melody extant. John Stokoe, Dec. 1887'. It would be a miracle if any of the Proudlocks you know had the original John Smith ms. The items Stokoe copied are intriguing, who knows what else was there? -- To get on or off this list see list information at http://www.cs.dartmouth.edu/~wbc/lute-admin/index.html