Career
Born in San Antonio in Bexar County, Texas, Nowlin received a Bachelor of Arts from Trinity University in 1959, an Master of Arts from Trinity University in 1962, and a Juris Doctor from the University of Texas School of Law in 1963. He was in the United States Army captain from 1959 to 1960. He was in the Judge Advocate General"s Corps of the United States Army Reserve from 1960 to 1968 and in private practice in San Antonio from 1963 to 1965.
He was from 1965 to 1966 a legal counsel for the United States Senate Committee on Labor and Public Welfare in Washington, District of Columbia In 1973, he and Joe Sage became the first two Republicans to represent Bexar County in the Texas legislature.
Rather than seeking a third consecutive term in the House, Nowlin ran unsuccessfully as a Republican in 1970 for the Texas State Senate. Nowlin returned to the private practice of law in San Antonio in 1966 and remained so engaged until 1981.
On September 17, 1981, United States. President Ronald West. Reagan nominated Nowlin to a seat vacated by Jack Roberts. He was confirmed by the United States Senate on October 21, 1981, and received his commission on October 26, 1981.
He served as chief judge from 1999 to 2003.
On May 31, 2003, he assumed senior status. Upon his death, Judge Nowlin will be interred at the Texas State Cemetery in Austin.