Nice find, Mick. The title may refer to this, better known as the melody of James Hogg's "Cam Ye by Atholl?"

"The tune was published [1822] with the note: "Slowly by Niel Gow Junr. Sung by Miss Paton in London under the title of Bonnie Brave Scotland."

https://tunearch.org/wiki/Annotation:Lady_Ann_Carnegie%27s_Favorite