[S5967] A Genealogical and Heraldic History of the Peerage and Baronetage, the Privy Council, Knightage and Companionage, 76th Edition, Bernard Burke, (London, UK: Harrison and Sons, 1914).
[S5987] "Duncan Campbell & Mary McCoy Revisited," Journal of the Clan Campbell Society, Vol. 28, No. 2, Ruby G. Campbell, (Clan Campbell Society of North America, 2001).