Jane,
I assume you are in touch with the Jeyes (I can'nt remember their names off hand) that live at Holly Lodge in Moulton? I visited them a couple of years ago to look at their family tree as my mothers names was Jeyes and we lived in Moulton also (we are of no relation, I think). They have a very elaborate family tree, hand written on a scroll. Very impressive. There is also a Jeyes the Chemist still open in Earls Barton which can be found on the internet very easily.
Probably telling you things you already know but if not hope it helps.
Richard