I am also seeking a James Callow of Whitehaven, listed as a 'weaver' on his son's wedding certificate. Otherwise I have no other information at this stage and I am trying to find a possible link to IOM Callows. The son, also a James Callow born about 1785 married in Whitehaven 5 June1841 to an Ann Jackson born about 1816 and they had three children John, Margaret & Ann. This James, listed as a 'mariner' on his son John's birth certificate, was quite a lot older than Ann when he married her so it could have been a second marriage. I wonder if this could be an earlier marriage connected to the query of Andrew Cogle but this speculation on my part.