This popped up on my newsfeed and might be helpful to some. Free download.
"Some Prominent Virginia Families is a compiled genealogy of prominent families from the state of Virginia, which lists thousands of individuals, including their vital information and background. It contains the biographies, sketches and genealogies, primarily, of the Jaquelin, Cary, Ambler, Smith and Marshall families. Includes the names of approximately 135 allied families. This is volume 1 of the 4 volume set."
https://virginiagenealogy.org/statewide/some-prominent-virginia-families-vol-1/
Thanks for mentioning these, Rich. The originals were published in 1907, so are in the public domain. As with all compiled genealogies, we have to apply a bit of skepticism and do our own research for verification of facts; there are no reference citations as such in the books. But there are research hint gems in these books by Louise Pecquet du Bellet. I've consulted them before and found a couple for my own lines.
All four volumes are accessible at the Internet Archive with several formats available for download, including complete PDFs that were processed via OCR and are text-searchable. The table of contents are only minimal, and there are no indexes in the books, so the search capability is extremely helpful.
Volume 1: https://archive.org/details/someprominentvir01pecq Volume 2: https://archive.org/details/someprominentvir02pecq Volume 3: https://archive.org/details/someprominentvir03pecq Volume 4: https://archive.org/details/someprominentvir04pecq