Clan Gunn and the Wilson sept idea
Septs should be treated with caution.
Sir Thomas Innes of Learney, GCVO WS (1893-1971) Lord Lyon King of Arms, 1945-1969, after being Carrick Pursuivant and Albany Herald in the 1930s makes mention in the book 'Clan Septs and Regiments of the Scottish Highlands' 1952 co-authored by Frank Adam that; “septs must be regarded as a rather wonderful effort of imagination” and “The very word ‘sept’ is delusive and no serious attention can now be attached to Skene’s theories about ‘septs”. He also states that some Clan historians could be being found guilty of “sept-snatching”.
In other words basically septs might be best viewed as romantic mythology.
Anyway see http://www.minrec.org/wilson/pdfs/02.%20Ancient%20Origins%20of%20Wilson-Revised.pdf for an excellent analysis on the Wilson name showing the range of possibilities for the family, including Clan Gunn. Just because your name is Wilson does not mean you are Clan Gunn...
See http://clangunn.weebly.com/concerning-septs.html as well.