King William County is one of eighteen Virginia counties for which the 1810 census is lost. In August 1814, British troops occupied Washington, DC and public buildings were put to the torch. In the destruction that followed, numerous early records of the government were lost, including all of Virginia’s 1790 and 1800 census reports, as well as eighteen county lists for the state's most recent  federal census. Although two “fair copies” of each county’s census had been left in the counties for public display, these were ephemeral lists and not preserved, and by 1814, they too had been mislaid, lost, or destroyed. Hence, the closest document available we have to reconstruct a partial image of the missing county lists is the personal property tax list.