Born on his family ranch near the Eagle Springs community in Coryell County, Texas, to Isabella Neff and her husband, Pat Neff grew up in a rural area and attended local schools. He graduated from McGregor High School. He received his bachelor's degree from Baylor University in Waco. He worked for the next two years teaching at Southwestern Academy in Magnolia, Arkansas, to earn money to go to law school. Among his students was Harvey C. Couch, who would later become a successful entrepreneur in Arkansas. Upon returning to Texas, Neff studied and received his law degree from the University of Texas School of Law in Austin. There, he developed a close friendship with Tom Connally and Morris Sheppard of Texas, who both became politicians and were later elected as US Senators from the state. After receiving his law degree and passing the bar, on May 31, 1899, Neff married Baylor classmate Myrtle Mainer in her hometown of Lovelady. In 1901, they had a daughter, whom they named Hallie Maude. They also had a son, Pat M. Neff, Jr. He joined the Democratic Party and entered politics, being elected in 1898 to the Texas House of Representatives, and serving from 1899 to 1905. He was elected to one term as Speaker. After returning to his law practice in Waco, Neff served for six years as the assistant county attorney and then as county attorney for McLennan County.
Considered a progressiveDemocrat, Neff defeated former U.S. Senator Joseph Weldon Bailey, a former populist, in the party primary for governor in 1920. This defeat effectively ended Bailey's political career. Neff handily won the general election and started his term in 1921. Neff was a strong supporter of prohibition. He was instrumental in the development of the Texas State Parks Board. Neff and his mother, Isabella Neff, donated the land which would become the first state park in Texas. It was named Mother Neff State Park. During the resurgence of the Ku Klux Klan during his administration, Neff was criticized for not taking a stronger stance. Neff is notable for his pardon of folk singer Lead Belly in his last days as governor. In 1921, the West Texas Chamber of Commerce supported legislation passed by both houses of the Texas Legislature to establish a West Texas A&M College. The bill was vetoed by Governor Neff, who said that the state could not afford another state college designed for thinly populated West Texas. He defended his veto, saying that the proposed college had not been included in the 1920 Democratic stateplatform. Neff's veto stirred up a political firestorm. Two years later he was prepared to sign similar legislation for a college in West Texas; it was co-authored by State Senator William H. Bledsoe of Lubbock. The legislature appropriated $1 million to establish what is now known as Texas Tech University. Neff was reelected in 1922 but did not seek a third term in 1924. At the time, it was "understood" that no governor should run for a third term, although Texas did not have official term limits for the office. In 1924 Miriam Wallace "Ma" Ferguson, wife of controversial former Governor James E. Ferguson, won the general election. The Republicannominee, George C. Butte, an American jurist who had opposed James Ferguson's line item veto of the 1917 University of Texas appropriations bill, had a stronger than usual showing. Many voters crossed party lines to vote for him, as they were unhappy with the corruption associated with "Pa" Ferguson. After leaving the governorship, Neff served on the Texas Railroad Commission. Governor Ross Sterling appointed Ernest O. Thompson of Amarillo to succeed Neff when he left the position to become President of Baylor University. Thompson served on the panel for thirty-two years and developed a reputation as an expert on petroleum issues.
President of Baylor University
After the death of Samuel Palmer Brooks, Neff was nominated to replace him as President of Baylor University. He resigned the post of President of the Board of Trustees, a position that he had held since it was vacated by B. H. Carroll in 1907, upon the nomination as President. In 1947, Neff was asked to stay on as the President by the staff at Baylor University.
Neff was president of the Southern Baptist Convention from 1944 to 1946.
Legacy
in Houston and Pat Neff Middle School of San Antonio are named for Neff, as is Pat Neff Hall at Baylor. Neff died in Waco and is interred there at Oakwood Cemetery. His papers, including those from his time as governor, are housed in The Texas Collection at Baylor University.