Burke's Presidential Families of the United States of America, @ Has Joan as his daughter, instead of granddaughter.
The cited information was published by Burke's Peerage, London, 1975 (Ref: Has Joan as his daughter, instead of granddaughter.) The author/originator was Burke's Peerage.
Source Notes
TITL Burke's Presidential Families of the United States of America,
Pages: 673ABBR Burke's Peerage of Presidents