Jean-Baptiste-Joseph Debay (d.1863) studied at the Royal Academy in Paris and later became a pupil of Chaudet. In charge of the workshop doing repairs and renovations to the Louvre in the mid-1840s, he executed a large number of public commissions in both Paris and Nantes and specialised in portrait busts of his noteworthy contemporaries such as the present example of General Joubert (now at Versailles).
The founder, Gruet the Younger was active at the end of the nineteenth century.