There is a transcription with midi in the Contemplator ("Settler's Lament"). Some words are different, from the Penguin printing; Scottish spellings are absent except for hame, 'banished Swill' is present and Eskdale Pen becomes Eskdale Glen. A comma in front of 'lang syne' indicates the transcriber had Burns in mind. Settler
The version printed supposedly is from the Tannahill Weavers.

Ca. 1870?- seems more likely than 1840 or 1850. Is his first name known? He is not included in "Scottish Canadian Poets, 1909, coll. Daniel Clark. (listed as vol. 1, but I doubt further vols. were published).