Michael Steinore <msteinor@...>
In looking at the 1920 Census images for Bayonne NJ, Hudson CountyIf I am correctly interpreting what you are seeing, these 3-digit
numbers were used to encode the raw census data for each person, in
order to calculate census statistics. But since the 3-digit code
is based solely on the other columns of information on the census form,
they are of no use to genealogists, even if someone could tell you
what they meant. At least they didn't use a punchcard system....