Barry,
My GG Grandfather Charles Wesley Kaighin married Margaret Christian on 23 Aug 1849 in Braddan. A rumor has passed down through my family that Margaret Christian was related to Fletcher Christian of Bounty fame, possibly a niece or grand niece. I don't have much information on her other than she was born about 1823 and died in Cleveland in 1904. In your research have you run across a Margaret Christian that fits this profile, and if so any indication whether the rumor is true?
Greg