U.K. CENSUS RETURNS

     The first census whose returns are of any use to the
genealogist was taken in 1841.  The entries give the names of all
members of a household, their occupations,  ages to the nearest
multiple of five below the actual age (except children under 15,
whose true age is given)  and the answer 'yes' or 'no' to the
question 'Were you born in the county in which you are living now?' 
The later censuses available for public inspection - 1851, 1861,
1871, and 1881 in England and Wales, but as late as 1901 in
Scotland - give relationshipss to the head of the household, and
more precise ages and birthplaces.