When I was in Scotland, I tried to find an Adair Tartan. What I found was that the Adairs were affiliated with several clans. There is no Clan Adair, that I found. In other words, we paid taxes and supported several Clan Chiefs. My Clan Book is at my other home but suggest that you look up Adair in a Clan Book which you can probably find at the library. Clan affiliation for the Adairs seems to vary with different books. Clan McAllister is one of the clans listed. The Adairs originally came from Ireland as our Robert Fitzgerald de Adare, started our family by fleeing to Scotland after his battle with the White Knight. He then used the name Adair. (This is family lore and there are several versions but all start in Ireland with Robert ending up in Scotland.)Hope this helps.