Okay. I bit.
I like genealogy and, while I know who my parents and grandparents are, there is a bit of a mystery about my paternal great-grandfather as he and that great-grandmother weren't married and, since they produced my paternal grandfather, that is the side whose last name I have. Otherwise, I know to at least greatx2s and, in the case of the Creole French side (there were in Louisiana the longest, so more records here), to greatx5. Anyway, the book sounds interesting!