I received an extract of sample data for 1900 and 1910, but would like complete count data (looking for all African American households in Washington DC). If so, I can’t figure out how to request it.
We are in the process of making complete count data available for the years 1790-1930. See here for more information on the variables we expect to include in these datasets, as well as the general timeline of the data releases.
We do have early versions of the 1900 - 1930 data available for restricted access; however, the variables are limited. If you would like more information on obtaining access to these datasets, please email ipums@umn.edu.
Hope this helps.