From 1888 to 1899, he served as secretary to the Military Governor of Leyte, General Ambrosio Moxica. De Veyra's administration also faced challenges due to the resurgence of
Pulahanes attacks beginning in June 1906. After subsequent attacks in July and burning of
barrios within Leyte's municipalities, de Veyra labeled them as terrorists. He served until 1907, when he became a member of the first
Philippine Assembly as the first representative of
Leyte's Fourth District in the
Philippine House of Representatives. He served in the Assembly until 1913, when he became a member of the Philippine Commission 1913–1916. In 1916, de Veyra was appointed executive secretary of the Philippine Islands under
Governor-General Francis Burton Harrison, and served until 1917. In 1917, de Veyra was elected to the
U.S. House of Representatives as a
Resident Commissioner of the Philippines. He reelected in 1920 and served from March 4, 1917, to March 3, 1923. He was declined to be a candidate for renomination in 1922. He engaged in journalistic work during 1923, and he became head of the department of
Spanish,
University of the Philippines at Manila, serving in such capacity from 1925 to 1936. From 1937 to 1944, de Veyra was the director of the
Institute of National Language. He also served as historical researcher in charge of manuscripts and publications,
National Library, and historical researcher, Office of the President, during 1946. ==Personal life==