Many thanks for that. Just been reading the link you kindly posted. I'm ashamed to say that Pittville is new to me - nor (despite being a musician) did I know that Holst has a dedicated museum there. Fascinating ! I shall have to make a pilgrimage there.

And yes, I would have thought that a 'Gardener' was in some sense a professional, whereas a 'labourer' could probably turn his hand to some gardening if required.

Looking around on the web, Scotland seems to have had a developed system of quasi-Masonic Gardeners Lodges - but apparently the only one outside Scotland was in Bristol, which may or may not be significant !

Thanks again.