A saving of one finger typing---SoS--South of Scotland.
In my local telephone directory for the area there are some 36 col. inches of Allan / Allen with Allan being 90% 0f the total.

From the Web:--
"What follows is taken from an old ballad of the times. The ruins of Achruglen are pointed to in confirmation, nor is the deed at all out of keeping with Ayrshire story of the sixteenth century" [19th.C.]

I have seen the ballad in print but as yet have not been able to locate it.

The Lady Loudon and her children were smoored to death in the firing of Achruglen by Lord Bargany he being a Kennedy and she by marriage a Campbell. If my memory serves she was a Crawford to her own name.
The incidents related in the ballad are similar to those in "Edom o Gordon".