Delfin was born to Dionisio Quiboloy and Anastasia Turla on July 23, 1911 in Santa Catalina, Lubao, Pampanga, Philippines where one of the oldest Catholic churches in the Philippines was initially built. He attended public schools in his hometown during the same decade when famous Lubenians like President Diosdado P. Macapagal and Senator Rogelio de la Rosa were also pursuing their elementary school education.
Delfin started his teaching career after he earned his Elementary Teacher Certificate and Bachelor of Science degree in Education from National University in Manila, Philippines. He married the former Africa V. Paule on January 10, 1935 and their happy marriage produced a dozen children who all grew up to become successful professionals and respectable citizens.
After many years of service in the teaching profession as a school principal, Delfin and his wife migrated to the USA to join most of their children who made the "land of opportunity" as a second home.
At the time of Delfin's death, he was survived by eleven of his and Africa's twelve children namely, Celia Q. Flores, Liberty Q. Singian, Estrella Q. Bognot, Dante Quiboloy, Alice Q. Singian, Daisy Q. Bautista, Delfin Quiboloy, Jr., Nestor Quiboloy, Agnes Q. Japlit, Florante Quiboloy and Manuel Luis Quiboloy. His wife, Africa Paule Quiboloy died on March 7, 1986 and his second eldest daughter, Amelia Q. Cruz passed away on August 2, 1998.
Despite of a busy schedule as the breadwinner of the family and patriarch of the Quiboloy clan, Delfin was a prolific husband and a very productive poet laureate, playwright, educator and a leader among his peers. His literary achievements included several awards, medals and trophies. His crowning glory was on March 1, 1969 when he was honored by the president of United Poet Laureates International, Dr. Amado Yuzon in recognition of Delfin's contribution to World Poetry in general and Kapampangan Poetry in