Toulouse was the scene of his first missionary labours, and he became known as l'Abbe MacCarthy, and was referred to also as l'Abbe de Levignac, after an estate which his father had purchased near Bordeaux, Gironde.
Toulouse marked the beginning of his missionary activities, and he was referred to as l'Abbe MacCarthy or l'Abbe de Levignac, with the latter name coming from an estate near Bordeaux, Gironde that his father had acquired.