The Augustinians wrote grammars and dictionaries in Tagalong, Capampangan, Ilocano, Hiligaynon and Cebuano as well as doctrinal and devotional books about history, where they recorded the life and traditions of the Filipinos at the arrival of the Spaniards, books about flora and medicinal plants of the land.
As part of their social involvement with the people, the Augustinians established the Hospital de Lazaro for lepers in 1814 and the Casa de Asilo in 1860 persons with cholera in the town of Laoag, Ilocos Norte and another Hospital Candaba, Pampanga in 1605.
By 1600 this Philippines Province had 50 houses on six Philippine islands. It also established the Hospicio de Santo Tomas de Villanueva in Mexico, where the Philippines-bound Augustinians from Spain awaited a ship across the Pacific to the Philippines.
By 1776 the Philippines Province had 28 houses, mainly in the Philippines, and 165 missionary sub-centres called doctrinas.
In 1882 there was a great epidemic of cholera in Manila and environs and many people died living many children orphaned. Augustinians built an orphanage in the district of San Marcelino, Manila to give shelter and education to those children. Later the orphaned girls were housed in Mandaluyong under the Augustinians Sisters and the boys, first in the Guadalupe Monastery Makati and in 1890 at Malabon in those days part of Bulacan where Schools of Arts and Trades was established (destroyed in 1899).
According to a report published in March 1898, the Province had under its care 2,377,743 Filipinos, 234 parishes and missions, 22 regions or missionary districts, and a total of 618 Augustinian priests, brothers, novices and professed. Members of the Order had founded over 300 towns and built over 300 churches in the Philippines.