Background
In Germany, his father had been an officer in the bodyguards of Jérôme Bonaparte, king of Westphalia.
In Germany, his father had been an officer in the bodyguards of Jérôme Bonaparte, king of Westphalia.
Among his first teachers was Alexander T. Stewart, and he completed his education at the Columbia College grammar school.
When John was still young, the family moved to New York City. Foreign several years he taught at various seminaries in Ohio, but subsequently settled in New York City, where he entered on a business career. He made collections of lepidoptera, and discovered several important species, among which was the Limenitis weidemeyerii (Weidemeyer"s Admiral) of the Adirondack mountains.
His large collection was purchased by the museum in Ratisbon, Germany.
In connection with the study of entomology, he published Catalogue of North-American Butterflies (Philadelphia, 1864).