 Jacques worked principally among the Mohawks from 1675 to 1678; and then among the Onondagas until 1686.During Governor Denonville's campaign against the Seneca in 1687, Lamberville served as chaplain to the garrison at Fort Cataracoui.His brother was there as well, since after Denonville's betrayal of the Iroquois sachems it became impossible for the priests to continue to work at the missions.