Dr Douglas W.Jopling <jopling(a)clara.net> wrote on Thu, 22 May 2003:
While doing a search of the 1901 Census using the 1901 Census
(a very useful accessory for searching the Census) I did several
searches using the Surname but different other search criteria. Though
the searches yielded the same results with the same Person IDs for each
family member I noted that the Page IDs differed for each search. What
is the significance of the Page ID ?
It used to be the case until recently that the Page ID mapped more or
less directly to the actual piece and folio numbers; with the result
that the Census Extractor and Guesstimator could provide a very good
estimate of the accurate location of the entry.
The Page ID doubtless still remains in the system as an internal
reference, but it's now 'munged', on a per session basis, presumably to
prevent this guesstimation and encourage more people to buy the
extracts. But closeness of Person IDs can still be used to identify
households, and closeness of Page IDs still seems to indicate nearness