Helmholtz, Hermann von 1821-1894 Popular Lectures on Scientific Subjects. Second Series

Bassett, Josephine Risser 1894- Ancestry and Some of the Descendants of Captain Joseph Basset, 1785-1821 / by J.R. Bassett & A.M. Cates.

Schumacher, Verena Bucher 1906- Family Record of the Children of Peter Hilty 1821-1892 and Elizabeth Neuenschwander Hilty 1819-1894

Poole, William Frederick 1821-1894 The Popham Colony: a Discussion of Its Historical Claims, With a Bibliography of the Subject