Brigadier General Thomas Grafton Hanson (May 1, 1865 – May 23, 1945) was a United States Army officer in the late 19th and early 20th centuries.

He graduated thirty-fourth in a class of sixty-four from the United States Military Academy (USMA) at West Point, New York, in June 1887.

[1][2] A large number of his classmates would go on to become general officers in the future, such as Charles S. Farnsworth, Ulysses G. McAlexander, Edmund Wittenmyer, Mark L. Hersey, Charles Gerhardt, William Weigel, Ernest Hinds, Nathaniel Fish McClure, Marcus Daniel Cronin, Herman Hall, George Owen Squier, James Theodore Dean, Frank Herman Albright, George Washington Gatchell, Alexander Lucian Dade and Michael Joseph Lenihan.

[1][2] Hanson was promoted to the rank of brigadier general on August 5, 1917, after the American entry into World War I.

He lived in San Francisco and died in Oakland, California, on May 23, 1945, shortly after the end of World War II in Europe.