Greg,
I have a distant connection to the Kaighin family of Ballacregga, Kirk Michael through son Charles who became heir when his brother John emigrated to America.
I recommend you read David Craine's book "Manannan's Isle" which contains a LOT of info about this family. Included are several family letters. One written by Jane Kaighin alias Cannell to her son in America when his father died is especially poignant.