More anent "the book" in The Mariners List posting (replies #108, #109 of this thread), namely:
Notes on The History of Shipbuilding in South Shields 1746-1946 by Amy C. Flagg
ISBN: 0 906617030
It would be worthwhile for you to get a copy of this for more reasons than those two sales of ships.
'Way back in November, 2008 I was tempted to mention it in response to julianb's reply (#57), but then I didn't, because if he had searched diligently himself, he'd have found the reference. Pages 77 and 78 contain a potted history of the shipbuilding firm Thomas Metcalf and Sons, which was briefly Metcalf & Lee (during which time Harry Lee, the younger, was killed there). It's a one sentence reference to Lee.
Further, as you learn more about EDT, his associates, his business dealings, his background and his ships, you'll recognize a lot of names in that book. It all helps to provide context for him - actual local history rather than just "begat, begat, begat" pedigree.