The remaining questions focused on the respondent’s place of residence as of April 1, 1935 (a nifty way to track your relatives between censuses), employment and income.
Jumping the gun
If, despite this rigmarole, your appetite already has been whetted for the censuses of 1950 and beyond, don’t get too excited. The 1950 enumeration followed the 1940 statistical-sampling model, collecting only the basics on 95 percent of the population.
From the May 2010 Family Tree Magazine