Henri Joseph Hogard

Henri Joseph Hogard (14 May 1776 - 3 September 1837) was a French forest surveyor, geometer, and draughtsman.

Life He was born in Charmes, Vosges to François Henri Hogard, a bailiff at the bailiwick, and Catherine Marcot. He married Béatrix Anne Charlotte Colin (1780–1837), whose nephew was Charles Pensée. Hogard taught Pensée drawing, maths and geometry. In 1792 he volunteered for the army and he was also embodied again when he reached the conscription age. He was then made secretary-draughtsman then engineer-geographer to Dominique René Vandamme.

Returning to his family he became a geometer and forest surveyor in Épinal, where he became a member of the municipal council and of the "La Parfaite Union" masonic lodge (becoming its venerable from 1819 to 1827). He and his son Henri-Charles wrote a Manuel supplémentaire d'arpentage in 1836 and in 1822 invented the 'limbomètre', a device that graphically solves all problems depending on right-angled triangles, made by Esteveny in Paris.

Works Département des Vosges. Carte d'une portion de l'Arrondissement de Mirecourt sur laquelle se trouvent des Vestiges d'une route Romaine AB-KL, selon qu'il est détaillé dans le rapport fait le 27 juin 1821 à la Commission de la recherche des Antiquités du Département des Vosges par le soussigné géomètre à Epinal et membre de cette Commission. Echelle dans le rapport de 1 à 50. 000, Signée Hogard. Pr. copie conforme, le secrétaire de la Commission, Parisot. Épinal, 1821. Online version Plans of four of M. le Baron Falatieu's factories, situated in the towns of Bains and Fontenoy-le-Château, 1829. Documents attached to the owner's request for the maintenance of his factories. Archives Nationales F/14/4499 Two sepia-wash drawings (1828) and two plans of the château d’Épinal (1834), in Album of drawings of the park of the château d’Épinal, now held at the bibliothèque multimédia intercommunale d’Épinal. Online version Manuel supplémentaire d'arpentage... par MM. Hogard... et Henri Hogard..., Paris, Roret, 1836