John William Elmer Thomas was a native of Indiana who moved to Oklahoma Territory in 1901, where he practiced law in Lawton. After statehood, he was elected to the first state senate, representing the Lawton area. In 1922, he ran successfully on the Democratic Party ticket for the U.S. House of Representatives from Oklahoma. He was the Democratic nominee for the U.S. Senate in 1926; he won this race and held the seat until 1950, when he lost the party nomination to A.S. (Mike) Monroney. Thomas returned to a private law practice in Washington, D.C., and in 1957 moved his practice back to Lawton, where he died in 1965.

Lawton is a city in and the county seat of Comanche County, in the U.S. state of Oklahoma. Located in southwestern Oklahoma, approximately 87 mi (140 km) southwest of Oklahoma City, it is the principal city of the Lawton, Oklahoma, metropolitan statistical area. According to the 2020 census, Lawton's population was 90,381, making it the sixth-largest city in the state, and the largest in Western Oklahoma.