James Joseph Hornbrook

James Joseph Hornbrook was an American brigadier general during World War I. Hornbrook participated in frontier duty, the Spanish American War, the Pancho Villa Expedition, and World War I.

James Joseph Hornbrook was born in Evansville, Indiana in August 5, 1868 to Richard Saunders Hornbrook and his Adelia (Roberts) Hornbrook. Hornbrook attended West Point and graduated with the class of 1890.

After his commissioning, Hornbrook joined the Second Cavalry at Fort Bowie, Arizona.

On February 2, 1907, he received the rank of captain. He served as paymaster for the 12th Cavalry in Omaha, Nebraska and in Manila, Philippines from October 1, 1908 to October 1, 1912.

He attained the rank of major and served with the 6th Cavalry on October 3, 1912.

He participated in the Punitive Expedition in 1916 and 1917.

During World War I, he traveled with the 4th Division to France.

Hornbrook returned stateside on July 31, 1918 and was stationed at Headquarters for the Southern Department until August 11, 1918.

He was honorably discharged from federal service as a brigadier general on March 10, 1919. He returned to the rank of Colonel.

From October 1, 1919 to May 26, 1920, Hornbrook commanded the Fifth Cavalry, Big Bend District in Texas.

He retired on September 2, 1929.

In 1895, Hornbrook married Mary Worth Sanno, the daughter of Brigadier General James Madison Johnston Sanno (1840–1907), a career army officer and Union veteran of the American Civil War.

Hornbrook died on October 1, 1942 in Hollywood, California. He was buried at Arlington National Cemetery.