I  have just discovered a case where a Kentucky individual, who is clearly shown from county tax rolls to have been a major slave owner, does not have "other free persons" or  "slaves" enumerated in the 1810 census data on Broderbund Census Index CD-313 (see also, What the Numbers in the Federal Censuses Mean).

Broderbund's online version of this database at GenealogyLibrary.com has the same flaw.  I also checked Ancestry.com; in this case, they, too, show the same "00" for these two census categories.   Is this some generalized attack of political correctness or something?

For the case in point, please check out the family group sheet of Capt. John C. Clark.

I have no idea how extensive this omission is; it would have to be studied on a case-by-case basis.  Just be aware that simply because someone's census data read "00," it doesn't mean they didn't own slaves.  Tax rolls, deeds, and/or wills — and presumably the original census pages — should reveal the true situation with regard to ownership of slaves.

I have just discovered an 1810 case where the Broderbund CD lacks slave data, while the online Ancestry.com database includes it.

I've just discovered many cases in Christian Co., KY, in 1810 where the slave data are zero on the CD, but present on the images at Ancestry.com.