[2] Ignacio was born on 28 July 1851 in Molo, Iloilo City to Pedro Arroyo, a self-made businessman and patron of sugar lands in Negros Occidental, and Apolonia Petronilla Lacson.

[5] In the family, Maria took charge of teaching basic catechism, the daily evening recitation of the rosary, and help them become socially aware of the struggles and sufferings of the impoverished.

[11] When their daughter Rosario expressed her desires to enter the religious life, particularly to the Beaterio de Santa Catalina, the Arroyos at first were surprised but supported the vocation.

[13] On the other hand, out of the Arroyos commitment and dedication to the futures of their children, after having graduated from the law school at the University of Santo Tomas in 1903, Jose Maria voyaged to the United States to further his studies.

[15] During the Philippine Revolution, the Arroyos chose to keep a low profile while still sympathetic to the cause of the Comite de Conspiradores, a revolutionary society developed from a deep sense of nationalism and freedom from colonial rule.

[16] Always a pious man, Ignacio was prayed fervently during these times and challenged his family for minimal bloodshed and a quick capitulation on the part of the Spanish regime.

[1][5] In 1925, the Dominican Sisters of the Most Holy Rosary of the Philippines, spearheaded by Ignacio and Maria's daughter, Rosario, was formally established, with a Motherhouse in Molo, on 24 July 1925.