Dear Ms. Mickalunas,
Thank you for posting your request on History Hub!
The United States Census Bureau’s website as a history page which provides information about how each decennial census was conducted, to include the official enumeration date for each decennial census under Fast Facts, census instructions for 1790 and 1850 through 2010, and legislation concerning the census.
For more information about using census records, see NARA’s Census Records web page.
We hope this information is helpful. Best of luck with your research!