He was educated at the San Antonio High School and then studied at the University of the South from where he earned a Bachelor of Arts in 1943.
[1] He was awarded an honorary Doctor of Divinity from the Virginia Theological Seminary in 1980.
Hauser was ordained deacon on September 17, 1945, in St Mark's Church, San Antonio,[2] and priest on October 10, 1946, at Calvary Church in Menard, Texas, by Bishop Everett Holland Jones of West Texas.
[5] On May 8, 1979, Hauser was elected Suffragan Bishop of West Texas on the ninth ballot at a special council meeting.
He was consecrated on August 24, 1979, at the San Antonio Convention Center by Presiding Bishop John Allin.