Who is James Mather who married Catherine? This is probably the James, illegitimate son of Jane Mather born 1803 in Little Lever. In 1841, James's mother Jane was living at Old Acres (aged 70). His marriage witness Joshua Kirkman was a neighbour.
It's quite possible the James Mather that married Catherine is a brother or cousin of Holt Mather. Both werre spinners and both had daughters named Lavinia.
26 Nov 1826, James Mather married Catherine Rawsthorn. His witness was Joshua Kirkman (1790-1846) from Lever.
In 1841, James (a spinner) and Catherine (both 35) were living at Coronation Street, West Bolton. With them were Susannah (15), Jane (14), Peggy (13), Henry (8), James (4), Laviniah (1) and Margaret Rosthorn (60, possibly Catherine's aunt).
After Catherine died in 1843, James did not remarry. He is missing in 1851, so probably died 1848 (aged 48) or possibly 1854 (aged 49).