Margaret Harries of Haverfordwest married John Gardiner sometime shortly before 1765, whn their frst child was born. He was an American, and they later returned there, living in Boston and Maine. This family was Episcopalian (Anglican).
The LDS church does not seem to have filmed the records of the Haverfordwest parish church, which makes long distance research difficult.
I'm hoping to find some one researching this same family.