Family lore states that two sons of Duncan McColl, of Kilmory, Ardnamurchan, Argyll emigrated to Prince Edward Island, Canada and were never heard of again by the rest of their family.Descendants of these men may still live on the island or elsewhere. Their names are not known, but were NOT John, Samuel, or Malcolm. The year of emigration is not known, but their brothers, and probably their father, Duncan McColl emigrated in 1827, settling either at Montreal or at New Glasgow, Terrebonne County (about 30 miles north of Montreal, near St Jerome). About 1837 most of the family in New Glasgow migrated westward and settled in Westminster Twp, Middlesex Co, Ontario, near London, Ontario.
The only way to identify the brothers in PEI is if we can connect them to their lineage which has been passed down in the Westminster branch of the family.
The earliest ancester we know about is Duncan Ban McColl. His son John McColl had a son John McColl.This last John McColl had a son Duncan McColl, a mason in Kilmory, Ardnamurchan, born about 1744, died in Westminster Twp, Ontario in Autumn 1838 aged 94.
The two missing McColl men were sons of this Duncan McColl and of his unknown second wife.Their other siblings were: a half brother John McColl (only child of his father's first marriage), full siblings Duncan McColl, Samuel McColl, Malcolm McColl, Sarah "Sally"- Mrs Robert Campbell, and possibly a Donald McColl.
These McColls would be Gaelic speakers, and may have had seafaring skills, as well as farming skills as Kilmory is located on the north shore of Ardnamurchan. Their father and their brother Malcolm were masons.
Hoping that this query resonates with someone out there.