Pedro Tiangco Tuason was a prominent Filipino lawyer and government official. Born in
Balanga, Bataan
Balanga (pronounced ), officially the City of Balanga ( fil, Lungsod ng Balanga), is a 4th class component city and capital of the province of Bataan, Philippines. It is south of San Fernando, Pampanga (the regional city center) and northwest o ...
on 15 September 1884 to Clemente Tuason and Josefa Tiangco, Tuason attended the
public school in his town and at an escuela de segunda ensenanza. He was sent to study in the
United States
The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country Continental United States, primarily located in North America. It consists of 50 U.S. state, states, a Washington, D.C., ...
as a government
pensionado, attending the
New Jersey State Normal School in
Trenton, then the
Georgetown University Law School
The Georgetown University Law Center (Georgetown Law) is the law school of Georgetown University, a private research university in Washington, D.C. It was established in 1870 and is the largest law school in the United States by enrollment and ...
in
Washington, D.C., where he graduated with the Bachelor of Laws degree in 1908, and finally the
Yale Law School
Yale Law School (Yale Law or YLS) is the law school of Yale University, a private research university in New Haven, Connecticut. It was established in 1824 and has been ranked as the best law school in the United States by '' U.S. News & World ...
where he took a post graduate course. ("Justices of the Supreme Court", vol.2; pp. 57–61.) His name is sometimes wrongly spelled with the letter "z", such as the small stretch of a street named after him, but court decisions commonly use his original birth spelling.
Having passed the bar examinations in 1912, he was appointed Provincial Fiscal of
Misamis,
Surigao, Agusan (now
Agusan del Norte
Agusan del Norte, officially the Province of Agusan del Norte ( ceb, Amihanang Agusan; Butuanon: ''Probinsya hong Agusan del Norte''; tl, Hilagang Agusan), is a province in the Caraga region of the Philippines. Its capital is the city of Cabadb ...
and
del Sur
Del, or nabla, is an operator used in mathematics (particularly in vector calculus) as a vector differential operator, usually represented by the nabla symbol ∇. When applied to a function defined on a one-dimensional domain, it denotes t ...
), and
Ilocos Sur
Ilocos Sur, officially the Province of Ilocos Sur ( ilo, Probinsia ti Ilocos Sur; tl, Lalawigan ng Ilocos Sur), is a province in the Philippines located in the Ilocos Region in Luzon. Located on the mouth of the Mestizo River is the capital ...
. He became assistant attorney in the Bureau of Justice in 1918 and, in 1921, occupied the Office of the Attorney General in an acting capacity. He again served as an assistant attorney of the Bureau of Justice from 1921 to 1922. From 1922 until 1936, he was successively judge of the Courts of First Instance of