U. S. Census enumerations taken every 10 years are available for exploration at FamilySearch.org — most are indexed.

Click here for a full description at the FamilySearch Wiki of Bradley County Census records and their availability in-print and on-line.

The 1840 Census of Revolutionary War Pensioners is available for viewing and downloading free at the Internet Archive.  Bradley County residents are on page 152 (click here).

A surname index for the 1850 Census is available through the Internet Archive.  Click here to view and download it.