Grandma Daisy lied to me about her birthplace, and I had to find out why. Using DNA testing, I found Grandma Daisy's enslaved ancestors, and even toured the plantation where they toiled. Through family interviews, newspapers, and other documents, I learned how Grandma Daisy became an entrepreneur in the 1930s, which civic organizations she led, how she got her cooking gene, articles about her rich social life, and how she disciplined kids and husbands...