He attended the county schools and then taught school in 1884 and 1885. He was graduated from the law department of the University of Texas at Austin, in 1890, and was admitted to the bar the same year and commenced practice in Waxahachie, Texas.
He represented Texas in the United States House of Representatives from 1903 to 1915. He served in the Texas Senate, 1895–1899, and was elected as a Democrat to the 58th Congress, and to the five succeeding Congresses, March 4, 1903 – March 3, 1915. In Congress, he was chairman, Committee on Expenditures in the Department of Justice (62nd Congress).
He was not a candidate for renomination in 1914.
On July 4, 1911, Congressman Beall spoke before a crowd of 1,500 at Meriden, Connecticut for that city"s Independence Day celebration. The crowd found him "charming" and "eloquent" as he spoke of the nation"s history, his faith in God, and of the heroes of the old South.
After leaving Congress, Beall moved to Dallas, Texas, in 1914, and became a law partner with Doctor of Medicine Templeton and Tony B. Williams. Beall became president of the Dallas Union Trust Company in 1927.
He served as president of the Texas Electric Railway from 1921 until his death.
The couple had one child, Jack Beall (December 6, 1898-January 11, 1963). Jack Beall died in Dallas of a heart attack on February 11, 1929. He was buried in the Oakland Cemetery in Dallas.
Beall was a member of the Texas House of Representatives, 1892–1895. Along with members of the southern delegation to Congress, Beall was opposed to William Jennings Bryan on the latter"s 1909 support of Prohibition, citing the Texas preference of handling the matter on local levels.