Historians have suggested that Robert Smith Todd and Elizabeth Parker were double first cousins: his paternal aunt was married to her father, and her paternal aunt was married to his father.Mary Todd Biographyდაარქივებული 2012-05-09 საიტზე Wayback Machine.
Historians have suggested that Robert Smith Todd and Elizabeth Parker were double first cousins: his paternal aunt was married to her father, and her paternal aunt was married to his father.Mary Todd Biographyდაარქივებული 2012-05-09 საიტზე Wayback Machine.