There is a story in our family that we are also related to the Ettrick Shepherd. Interestingly, I have heard this not only from my mother, but also from the husband of a 3rd cousin once removed whose line diverged from mine in 1826, which was still in the lifetime of the Ettrick Shepherd.
This cousin has sent me an obituary of his wife's grandfather, which states that the founder of both lines moved from Selkirk to Larbert in 1765. You won't be surprised to hear that I have utterly failed to substantiate any of this information, but it's not for want of trying.
I do know of at least one living direct male descendant of 'my' line - maybe I should get in touch as ask him for a DNA sample.
I have a modest tree of 181 people related to the Ettrick Shepherd (not including 'my' line of course) which is far too big to post here, but if anyone would like a copy send me your direct e-mail address by PM.