Hi Kiwi
Yeah, Plenty to keep you going for a bit - seems like an interesting lot

Sorry can't help myself !
Here is Ann in the 1851 and 1861 - easily found as it turned out!
I guess this may explain, if Michael wasn't himself awfully well off, how Ann may have been living on her own means in 1891 - family money perhaps?
1851 - Chichester St Bartholomew, Sussex Ref :HO107/1653 Folio:146 Page:12
RD :Chichester Sub-RD :Sutton
West Gate
Head: William NORMAN 59, Tanner employing 18 Labourers, b Devon Buckland Brewer?
Wife: Catherine NORMAN 60, b Devon Barnstaple
Dau: Catherine NORMAN, 36 unm, b Chichester Sussex
Dau: Mary Ann E NORMAN 26, unm, b Chichester Sussex
Dau - Visitor: Ann G CHAMBERLIN 30, marr, Husband at Sea, b Chichester
Grandson: Norman CHAMBERLIN 9 b Stepney Middlesex
Grandau: Ann CHAMBERLIN 2 b Stepney Middlesex
Grandson:William Henry CHAMBERLIN 2 months, b Chichester
Servant: Sally SHEPHERD unm 17, House Servant, b Hartin Sussex
1861 - Toxteth Park Lancashire Ecclesiastical parish:St Paul
Ref :RG9/2706 Folio:116 Page:48
RD West Derby Sub-RD Toxteth Park
12 Collins Street
Head: Ann CHAMBERLAIN 39 widow , b Chichester Sussex
Son: Norman CHAMBERLAIN 19, unm, Letter Carrier Post Office, b London
Son: Edwin H CHAMBERLAIN, 7 Scholar, b Liverpool
Son: Septimus E CHAMBERLAIN 2, b Liverpool
Son: William C CHAMBERLAIN 3 months b Liverpool]
Lodger: Thomas SEDDELEY, unm, 35, Druggist, b Cheshire
Good luck
Cheers
AMBLY