The McKenzie name may have come from a second marriage of a Macrae widow with a very young child or a youth may have found it useful to use his mothers surname amongst strangers.
Dalriada DNA is present in several clans including the MacGregors, many of whom sheltered under the Macrae name during their time of proscription, in fact their current Chief has only 4 differences from the Macrae model at 67.
I hope this is of some use. Regards,
Reply posted by : Alasdair MacRae