The census was taken for the whole of the UK on these dates: The dates the Census was taken: 1841 - June 7 1851- March 31 1861- April 8 1871 - April 3 1881- April 3 These dates may help in figuring dates of birth. This came from a member of the Lanarkshire list. There is also an informative site at the following address: http://globalgenealogy.com/gazfd29.htm This is unfortunately only an England and Wales site, but the information is still valuable. The Scottish counties are of course, not listed. There is a great deal of information about the availability of the upcoming 1901 census to be released about 2003. If someone knows of a Scots site for census info - please list it, it deserves to be passed on ! - Meg Greenwood - Oklahoma