Genealogical records of the descendants of David Mack to 1879 This book, "Genealogical records of the descendants of David Mack to 1879", by Sophia Smith, is a replication of a book originally published before 1879. It has been restored by human beings, page by page, so that you may enjoy it in a form as close to the original as possible. This book was created using print-on-demand technology. Thank you for supporting classic literature.