Prince Frederick Henry Louis of Prussia (German: Friedrich Heinrich Ludwig; 18 January 1726 – 3 August 1802) was a Prussian general, statesman, and diplomat. He was a son of King Frederick William I of Prussia and Princess Sophia Dorothea of Hanover, and the younger brother of Frederick the Great.
Prince Henry of Prussia (1862–1929) Prince Hermann of Saxe-Weimar-Eisenach (1825–1901) Karl Eberhard Herwarth von Bittenfeld; J. B. van Heutsz; Higashifushimi Yorihito; Prince Konrad of Hohenlohe-Schillingsfürst; Henning von Holtzendorff; Dietrich von Hülsen-Haeseler; Isma'il Pasha; Prince Joachim of Prussia; Prince Johann of Schleswig ...
The family of Henry Keller were residents of Boalsburg, Pa. in the 1800's. Sophie Keller, daughter of Henry and Margaretta (nee Schneck), is significant because of more her participation in a graveside remembrance at the Boalsburg, PA cemetery in Oct. 1864 that blossomed into an annual memorial day event now held in May.