A bit older than 19th century, if you believe the following:

The earliest known printed version was as a broadside in the 1770s and it first appeared in book form in Scots Songs by Herd. An early version is sometimes attributed to Sir Alex Boswell. The text is doubtless older than its 1770 appearance in broadside, as it was recorded in the Skene Manuscript, a collection of Scottish airs written at various dates between 1615 and 1635. It was known at least as early as 1605, when a portion of the first stanza was written in a farewell letter, as a poem now known as "Armstrong's Goodnight", by one of the Border Reivers executed that year for the murder in 1600 of Sir John Carmichael, Warden of the Scottish West March.