- Niall O’Loughlin
(fl Paris, 1827–45). French manufacturer of brass instruments. Jean Auguste Guichard l’aîné (b 1803) founded a workshop in the rue de Chevet Saint Landry, Paris, in 1827. In 1835 he took on his brother-in-law Pierre Louis Gautrot as an assistant (their wives, Charlotte and Aimée Fischer, respectively, were sisters of an Alsatian Protestant family). The business moved in 1838 to the rue du Cloître Notre Dame. In 1845 Guichard joined a committee to litigate against Adolphe Sax, who had moved to Paris in 1842 and campaigned to have the French military adopt his instruments. Guichard nominated Gautrot as his successor in a deed dated 9 May 1845, receiving in return an annual fee of 2000 francs. Later that year, he was named a Chevalier de l’Ordre Royal de la Légion d’Honneur and he probably died soon afterwards.
Probably influenced by Gautrot, Guichard introduced the manufacture of inexpensive instruments known as ...