There are several census extractions available for Marshall County which enable a researcher to search for their ancestors in the census records for free.
- 1850 Census index
- 1850 Census at FamilySearch
- 1851 Census of Cherokee’s east of the Mississippi [Siler Rolls]
- Chapman Roll 7
- 1860 Census at FamilySearch
- 1866 State Census of Colored Population
- 1870 Census at FamilySearch
- 1880 Census at FamilySearch
- 1900 Marshall county census index
- 1900 Census at FamilySearch
- 1920 Census at FamilySearch