HISTORY:
John Hay Air Base was established on October 25, 1903 after President Theodore Roosevelt signed an executive order setting aside land in Benguet for a military reservation under the United States Army. The reservation was named after Roosevelt's Secretary of State, John Milton Hay. For a time, elements of the 1st Battalion of the Philippine Division's 43d Infantry Regiment (PS) was stationed here. Prior to World War II, a number of buildings had been constructed on base, including a U.S. Army Hospital and the summer residence of the Governor-General of the Philippines, later to be known as The American Residence, which is now used as the summer house of the United States Ambassador to the Philippines.