Robert and Catherine lived in Entwistle (1831-33), Edgworth (1835-38), Lower Turton (1839), Chorley (1841) and Horwich (1844 and later)
In 1841, Robert and Catherine (both 35) were at Knowley, Chorley with Jane (12), William (10), John (8), Nancy (6), Sarah (4) and Daniel (2).
In 1851, Robert, 46, Crofter, Widow was in Latham Row, Horwich with John (18), Nancy (16), Sarah Ann (13), Daniel (11), Catherine (9).
Headstone shows: Robert Longworth died 28 Feb 1870, aged 64. He is buried at Horwich Chapel Graveyard, but with wife Mary Lomngworth (1815-1891), not Catherine. This may be another Robert who married widow Mary Mather in 1850.