https://lva-virginia.libguides.com/tithables
In seventeenth- and eighteenth-century Virginia, the term “tithable” referred to a person who paid (or for whom someone else paid) one of the taxes imposed by the General Assembly for the support of civil government in the colony.
The tithe was based upon the taxable's status of being free of a mother who was also free and of color. The tax was due on males age 16 and a few times, on females, not often. The head of the household was the person who had to pay the tax, not always the taxable; depends. The head of the household may or may not have been a person of color. It depends on if they are paying on themselves or someone in the household.
Private these Whites are on Len's paternal side.
Some sources have this Danie's wife Sally Bolling show her lineage as shown on these sites, but it has been a good while since I looked at any of this:
https://www.familysearch.org/ark:/61903/2:2:3W1L-YFD?fbclid=IwAR3fV...
https://mayflowercharts.com/bolling/?fbclid=IwAR2dJGvDDxNrhxkKF2uJR...
If that's her true lineage, I don't see anyone of color in those lines for the tithe to have been on. Which makes me wonder if an unproven link to the Pocahontas Bolling line might have some validity.
Tithable law helped erode African people’s access to freedom by increasing the cost of being free. Requiring a certain amount of production by “all negro men and women…” increased English controls over African labor. The “Tithable” law presumed that African women worked the land,
NPS Ethnography: African American Heritage & Ethnography
www.nps.gov/ethnography/aah/aaheritage/Chesapeake_furthRdg3.htm