A good painter - and no relation to Graham, fortunately.
Here's a short note to say I've found out a lot more about the site in Halliwell, including its correct name - which is Toothells. So the site name will change shortly. The 184? map shows it (them) as 'Halliwell Hill'. Toothill's actually at the top of 63 steps, Barrow Bridge. (Another one) Got some photographs in the pipeline ...