Anna Popp, born May 5, 1834, as Anna Dorothea Friedrike Hilgard, older sister of United States journalist and financier Henry Villard (Heinrich Hilgard in Germany).
Unknown author<span style="display: none;">Unknown author</span>
published 1902
Heinrich Hilgard-Villard, <i>Jugend-Erinnerungen, 1835-1853</i>, 1902, p. 148