I’ve just spotted this bit of info from RCL Publishing on a narrow gauge modelling forum:
‘I'm currently working on a two volume set covering the work of Arthur Heywood and 15 inch gauge. The first volume The Duffield Bank and Dove Leys Railways is already started and we hope to publish late Summer. Volume two will be entirely devoted to Eaton Hall. The author, Heywood expert James Waterfield, has built full size replica Heywood locos and has a fine collection of Heywood memorabilia - plus access to family albums so there are images in this new work that have never appeared in print before. Plus, those images that we are familiar with are being re-processed from original prints, not copies - so will offer far more in the way of information than before. To add to this, pretty much every loco and item of rolling stock (even the Dove Leys 'pedal trolley') will be the subject of finely detailed drawings.’
Time to start saving...