Hi
If possible it is always best to look at the census itself as there can be errors also in the census index (as well as made by the enumerator themself - or factual inaccuracies given by whoever filled the household schedule in in the first place that the enumerator copied). On the 1881, 1871 and 1861 censuses William is indexed as Lorking, but on the index I am using as Larking in 1851 and Larkin in 1841.
More frustrating is trying to find Margaret senior on the 1851 and 1871 censuses. Youngest son Peter married 18th August 1850 St Mary Whitechapel (found on censuses from 1861 onwards) to Harriet Byworth, though he gave his father as William Lorking a cheesemonger.
Emma may have married very young in 1850 (civil registration district St Martin Westminster). There is an Emma Hudson wife of Charles Hudson aged 18 born Stratford Essex in Mitcham Surrey on the 1851 census. One of the potential spouses for the 1850 marriage in the civil registration index is a Charles Hudson. The couple are in West Ham on the 1861 and 1871 censuses. Margaret senior is not with them on the 1871 census, nor with William also in West Ham or Peter in Holborn in 1871 the year her death is later registered in West Ham district.
George married at St Helen Bishopgate in the City of London 27th January 1848 to Harriet Gardner Burley. He gave his father as William a tailor. The couple emigrated to Australia.
http://trove.nla.gov.au/ndp/del/article/13454104Regards
Valda