Thanks to Andyrush's research back in November, I have just spent half a day in Manchester County Records Office following up the leads on the list of drawings. Suffice to say (cos The Laird hasn't seen the fruits of my labours yet), it has been a most useful piece of help. Thanks Andy. Turned up some really good stuff, which will really help the project along. Although Andy came up with just over 20 references, each ref, constututed a roll of drawings, and said rolls could contain up to 30 individual drawings.
Tired, but happy,
Kevin