While entering some data from Aberystwyth for the freeREG site I came across a few Killings and Keelings but unfortunately I have lost the contact information for the person who was interested in these families. The information is sparse but I hope it proves useful. It was taken from the records for the Tabernacle Chapel, Lanbadarnfawr, Aberystwyth.
http://w-f-t.co.uk/index.php?page=keeling
Regards,
Phil.