You may also want to look at James Murray, a stocking maker in Selkirk, who married Betty Hislope and had a child Isoble born 29 March 1791. The minister came from Midholme. There may be a link between the two (probably not, but it's an avenue to go down)
Have a read through Reminicences of Yarrow by James Russell , as the Murrays are mentioned a few times (its available free on
https://archive.org/details/reminiscencesya01russgoog)
Hawick Hub has lots of Parish and other records that aren't online, with a wealth of information, if you have the time to trawl through them page by page to ensure you don't miss anything.
(a James Murray was also minister at Yarrow between 1680 and 1690)