Frederick W. Sibley was born at Fort Phantom Hill in Texas on October 17, 1852, to U.S. Army Colonel Caleb C. Sibley and Nancy Davenport-Sibley. In 1869 at the age of 16, Frederick was admitted to the United States Military Academy at West Point from Georgia, and graduated in the class of 1874.
After remaining idle for more than two weeks at Goose Creek, on July 6, 1876 General Crook ordered Lieutenant Sibley to take 25 men and two scouts, Big Bat Pourier and Frank Grouard, and make a reconnaissance to the north to locate Indians. Two civilians joined Sibley's party, bringing the total up to 30 men. While traveling down the Tongue River in the vicinity of present-day Dayton, Wyoming, the scouting party discovered a large party of Sioux and Cheyenne warriors moving south very close to them. Their only chance of escape was to take a trail to the Bighorn Mountains. The war party followed closely, and after surviving attacks by pursuing Indians, the patrol abandoned their horses and traveled deep into the rough steep terrain of the Tongue River Canyon system on foot. Over several days the group was able to evade the Indian force, after which they walked over thirty miles out of the mountains back to the Goose Creek camp, arriving worn out and fatigued but with no casualties. For this event, Lieutenant Sibley was brevetted to First Lieutenant for "gallantry in action on the Little Big Horn River". In July 1876, he was recommended for the Medal of Honor. On September 9–10, 1876, the now First Lieutenant Sibley participated in the Battle of Slim Buttes, in Dakota Territory.
Later service
On September 1, 1877, at Fort Sanders, Wyoming, Sibley married Fannie Lane, the daughter of Colonel E. D. Lane. He then served as the Adjutant of the 2nd U.S. Cavalry from 1889 until 1893. In 1898, during the Spanish–American War, Sibley commanded the Headquarters Guard of the IV Army Corps, under Major General John J. Coppinger. He again served as the Adjutant of the 2nd U.S. Cavalry from 1899 to 1900. In 1900, Sibley became the Inspector General of the Department of Texas, and remained in that position until the following year. In 1902 he was promoted to the Major of the 11th United States Cavalry Regiment. He was then made the Adjutant General of the Department of Luzon, in the Philippines from 1903 to 1904, and was in command of squadrons of the 2nd Cavalry and battalions of the 7th U. S. Infantry, which suppressed Landrones of Cavite and Bantangas Provinces, 1905, returning invalided to the United States. He was selected for detail to the General Staff, but declined the position in December, 1908. From February 1, 1908 until February 1, 1911 Sibley served as the 28th Commandant of Cadets at West Point. He was then promoted to the Colonelcy of the 14th United States Cavalry Regiment on March 3, 1911. In that position Sibley took part in the Pancho Villa Expedition of the Border War into Mexico in 1916. In July, 1916 he was appointed a Brigadier General, and due to his age, retired from the United States Army in October, 1917 after 42 years of service in the United States Cavalry. Frederick W. Sibley died on February 17, 1918, and is buried beside his wife Fanny in Section 2 of the Arlington National Cemetery in Washington, D.C..
