Could only find one Coffield.
Marriage.
James Coffield to Elizabeth Cony, on the 28 Oct 1854, in Newtownards Registrar's Office.
I tried this alternate spelling and found these. Don't how useful they will be, but you never know.
Birth.
Robert Henry Caufield, born 18 June 1868.
Parents, James Caufield and Sarah Majourie, Bangor.
Birth.
Teresa Caufield, born 13 June 1873.
Parents, Richard Caufield and Catharine Cunningham.
Kilkeel.
Baptism.
Mary Caufield, baptized on the 26 April 1846, in Kilkeel Roman Catholic Church.
Parents, Peter Caufield and Elizabeth Quinn.
Dixie