Hi Shan,
Very many thanks for your response. I do actually have this information and am now looking to go further back to parents and/or siblings of James Callow, born 1791. However, your information about William Callow, carpenter, living next door to James is very interesting - may well be an older brother of James, especially as John, the son of James, became a carpenter.....so William could well be an older brother of James!