In 1858, the barrio of San Geronimo became officially known as Lemery, after Captain Roberto Lemery, a commanding officer of the local military garrison. Captain Lemery was known for his deep ties with the community. Although he was tasked with instructing the military personnel assigned to the garrison, he went out of his way to immerse himself with the locals. He formed relationships with heads of the local church to learn the local language and cultivate harmony among the populace. When he died in 1856, the locals wished for the town to be renamed in honor of Captain Lemery.