Thanks Lesley,
(Would it help if one of the threads were locked with a final note referring to the other thread? Maybe all the posts from that thread could be pasted into a single highlighted Admin post on the other thread if that were practicable. It will still be a bit confusing but at least the problem wouldn't continue. Unless there are other potential problems it might be worth consideration. Just a thought.)
You would think that the place name spellings, Malgrundour and Maulgundor, being very similar and from separate sources, would be close to correct.
I had a trawl through the 4 segments of the very detailed 1828 map of Dumfries at
http://www.nls.uk/maps/early/555.html and couldn’t find anything like it (although I may have nodded off a couple of times during the process). What’s more the name seemed so out of character with all the other names I came across.
I searched the IGI for a John Wylie birth in 1818+/- 2 and there were 129 for the whole of Scotland, of which there were 66 for Ayr, 19 for Renfrew, 14 for Argyle, 12 for Lanark and 10 for Dumfries. All other Shires were usually no higher than 2.
Assuming this was a reasonably representative sample, that place is very probably in Ayrshire and not Dumfriesshire with a much smaller chance for Renfrew, Argyle and Lanark.
So, Orchard, you might get put out of your misery by having a trawl through this map of Ayrshire.
http://www.nls.uk/maps/early/547.html
If you have any problems with that please post again and I might even do it myself.
All the best,
Alan