Gabaldón was born in San Isidro, Nueva Ecija, Captaincy General of the Philippines (present-day Philippines) on December 8, 1875,[1] and was a Spanish Filipino, the son of José Gabaldón Pérez, a Spaniard from Tébar, Cuenca, and of María González Mendoza, a mestiza.

[3] He studied law at the Universidad Central in Madrid, Spain and graduated from the Univérsidad de Santo Tomas in Manila, Philippines.

[1] He was reelected in 1923 and 1925, and served from March 4, 1920, until his resignation effective July 16, 1928, having been nominated for election to the Philippine House of Representatives.

He had also been elected in 1925 as a member of the Philippine House of Representatives, but did not qualify, preferring to continue as commissioner until resigning in 1928.

[1] Gabaldón lends his name to American-era public elementary schools built through the bills he sponsored thru the Philippines Assembly Act No.