[1] Delgado graduated as valedictorian from San Beda College in 1933 and received his Bachelor of Science in Mining Engineering, magna cum laude, from the University of Santo Tomas in 1937.
On July 28, 1963, Jose Antonio died along with the rest of the Philippine contingent to the 11th World Scout Jamboree in Marathon, Greece, 19 other Boy Scouts, three Scoutmasters, and a Chaplain, when their plane crashed in the Indian Ocean off the coast of Bombay, India.
[6] His son, industrialist Jose Eduardo Delgado, was a member of the National Executive Board of the Boy Scouts of the Philippines.
Delgado retired in 1982 and subsequently served as Ambassador of the Sovereign Military Order of Malta to the Philippines from 1982 to 1988.
Delgado died December 7, 1992, of natural causes at home in Makati, Metro Manila, 14 days before his 75th birthday.