Hi Freckles,
Did you find any information on Henry Boyd Coastguard of Newcastle? I think he was a brother or a son of David Boyd the Linen Merchant of Kilkeel and Magheramurphy. They both have identical Headstones in the Old Kilkeel churchyard beside each other. In the Freeholders list for Barony of Mourne David Boyd lists three names in October 1819, David Boyd, Henry Boyd and John Boyd.
His headstone lists Martha as his wife who died in May 1845.
David Boyd the Linen Merchant is my G-G-G Grandfather. If you have more information on your family I would love to hear from you.
regards
Babzi