Near the end of his tenure at LSU, the university created the T. Harry Williams Chair of American History.
As an author, Williams wrote biographical works between the 1940s to 1970s, including multiple books on Abraham Lincoln and Rutherford B. Hayes.
[2] In the 1930s, Williams completed his post-secondary education at Platteville State Teachers College and the University of Wisconsin.
[3] While teaching history for their extension schools, Williams was dismissed from his position at Wausau, Wisconsin in November 1936.
[14] In 1950, Williams began a three-decade career with Louisiana State University Press as the editor of their Southern Biography Series.
[3] For individual historical works, Williams published a 1962 book of collected essays about generals in the American Civil War called McClellan, Sherman, and Grant.
[20] This book on Union generals focused on Ulysses S. Grant, George B. McClellan and William T.
[21] For a 1963 republication of a work by Edward Porter Alexander, Williams added a preface to Military Memoirs of a Confederate.
[26] In between Williams managed to write two volumes for an early Time Life Books series, the 1963-64 The LIFE History of the United States series, which concerned volumes 5 ("The Union Sundered, 1849-1865", OCLC 228435529) and 6 ("The Union Restored, 1861-1876", OCLC 1407715615), both released in 1963.
[2] Williams created the Long biography with his wife by using interviews conducted with a tape recorder.
[31] To create his books, Williams used terminology that was used in the past while writing his works with a notebook and pencil.
[35][36] Near the end of his tenure at Louisiana State, the university created the T. Harry Williams Chair of American History in 1979.