Hi topmarx,
Bit of a longshot, but in the absence of anything else, it might be worth a look:
Family living at Eccles, which I believe is about 4 miles from Manchester, on 1841 census:
HO107 Piece 543 Book 5
Head of family Robert Chapman b.1796
Wife Betty b.1798
several children, one of which is Eliabeth born c.1831
The parents were married at Manchester Cathedral:
Robert Chapman married Elizabeth Crossley
14 Jul 1811 Cathedral Manchester
Batch number: M005464
Father's occupation on 1841 is described as weaver.
This may be Robert in 1851:
HO 107 Piece 2230 Folio 531 Lodger
But, there are one or two other Roberts.
Told you it was a long shot

Will keep looking.
Kind regards,
Paulene
