1851 census:
HO107/1797/385/25 - Hawkmill St, Needham MarketWilliam Rozier Head 26 Groom b. Needham
Ma[...] Rozier Wife 30 b. Worlington, Suffolk
Could be Mann or Maria - very faint.William H Rozier Son 4 b. Needham
Alfred E Rozier Son 3 b. Needham
1861 census:
RG9/359/41/2 - 2 Henry Place, Lambeth St MaryWilliam Rozier Head 36 Coachman b. Needham Market
Maria Rozier Wife 40 b. Warlington
William Hy Rozier Son 14 Porter b. Needham Market
Alfred Edward Rozier Son 12 Scholar b. Needham Market
Frederick Geo Rozier Son 9 Scholar b. Needham Market
Harriet Agnes Rozier 5 Scholar b. Clapham, Surrey
Clara Louise Rozier 1 b. Clapham
1871 census:
RG10/32/48/23 - 2 Clarence Mews, KensingtonWilliam Rozier Head 46 Coachman b. Needham Market
Maria Rozier Wife 50 b. Mildenhall
Frederick G Rozier Son 19 Groom b. Needham Market
Harriet A Rozier Dau 15 Dressmaker b. Clapham
Clara L Rozier Dau 11 Scholar b. Clapham
Deaths Mar 1899ROZIER William 74 Kensington 1a 125
Deaths Dec 1895ROZIER Maria 81 Fulham 1a 187
I can't see a marriage on FreeBMD - the complete GRO index is currently free at
http://www.ancestry.com/search/rectype/vital/freebmd/bmd.aspx, but it's still a "test" version with some teething problems!
Otherwise the best way to find Mann/Maria's maiden name would be to get a birth cert for one of the children (on Free BMD
http://freebmd.rootsweb.com).
Rambler