As Tripleblessed mentioned, the surname Lendrum is not found on the list of surnames historically associated with our clan. Do you remember the specific sources that listed Lendrum and its variants as being associated with the Comyns/Cummings?

I will certainly mention this query to our society historian (a former member of Xmarks) and see if he has ever heard this before. I don't have my copy handy, but Alan Young's Robert the Bruce's Rivals: the Comyns 1212-1314 might be worth perusing as well.

If I can be of any other assistance, please let me know.

Regards,

Todd Wilkinson
President, Clan Cumming Society USA
www.clancumming.us