[2] Magbuelas was the son of migrants from Panay, either Antique or San Joaquin, Iloilo, who cleared a small piece of land in the forests of Himamaylan.

In his younger years, Papa Isio witnessed the loss of their small landholding to the marauding sugar barons of Negros.

[3] According to Sa-onoy, Magbuelas's nom de guerre Papa Isio was partly dictated by the religious thrust of his revolt against Spain and the Christianity it championed.

[4] Fusing religion with agrarian reform and nationalism, Papa Isio called for the removal of foreigners from Negros and the division of the land among the natives.

[3] While Filipino revolutionary General Miguel Malvar, widely acknowledged to be the last leader of the Philippine Revolution to surrender to the Americans, actually capitulated on April 16, 1902, Papa Isio gave up his struggle very much later - on August 6, 1907.

The marker states: Papa Isio was known to be a leader in Negros and organized a group in Isabela fighting for freedom from the Spanish colonizers in 1896.