He attended l'École Niedermeyer (piano, organ, composition) and was also coached by Jean-Baptiste Faure with whom Louise herself had studied.
[2] At La Monnaie in Brussels, Delaquerrière sang Wagner in Méphistophélès by Boito in 1883, created a role in Le panache blanc (by Philippe Flon) and sang L'abbé in Le trésor (by Charles Lefebvre) in 1884, created David in the local premiere of Les maîtres chanteurs de Nuremberg (translated by Victor Wilder) and appeared in Joli Gilles (Ferdinand Poise) in 1885.
[5] The singer was on good terms with several contemporary artists and composers;[6] his close friendship with Chabrier resulted in a proposal to mount a concert of the composer's works in Royan in 1888, where Delaquerrière was enjoying success; Chabrier in one of his most bitter letters tore the idea to shreds.
Among his pupils were well-known opera singers such as Edmond Clément, Lucienne Bréval and Paul Franz.
Those portions of Louis and José's personal notebooks related to voice topics were transcribed and translated by Sophie Louise Roland in her D. Mus.