Born in New York, he
graduated from the U. S. Military Academy at West Point
on July 1, 1846 whereupon he received a brevet to 2nd Lieutenant,
7th Infantry. With the outbreak of the Mexican War he was
promoted to 2nd Lieutenant and assigned to the 4th Infantry.
He was at the Siege of Vera Cruz, March 9-21, 1847; the
Battle at Molina del Rey, September 8, 1847; and the Assault
and Capture of Mexico City. For gallant and meritorious
conduct in the Battle of Molina del Rey he was breveted
to 1st Lieutenant on September 8, 1847.
He was promoted to
1st Lieutenant on January 1, 1848 and assigned in garrison
at East Pascagoula, MS in 1848 and Detroit, Mich. from 1848-1850.
From 1850-1852 he was on recruiting duty following which
he was assigned frontier duty at Benicia, CA, Ft. Vancouver,
WA and Ft. Steilacoom, WA through 1855. He was promoted
to Captain, 4th Infantry, July 31, 1854. He continued on
frontier duty in California and Oregon until arriving at
Ft. Hoskins, OR in 1861.
He was promoted to
Major, 11th Infantry, May 31, 1861. He commanded the 11th
Infantry (Army of the Potomac) in the Virginia Peninsular
Campaign, March to August, 1862, being engaged in the Siege
of Yorktown, Battle of Gaines's Mill and Battle of Malvern
Hill. He was breveted to Lieutenant Colonel on July 4, 1862
for gallant and meritorious service during the Peninsular
Campaign. He served in the Northern Virginia Campaign, August
to September, 1862, including the Battle of Manassas; in
the Maryland Campaign, commanding Regiment engaged in the
Battle of Antietam and the Skirmish at Sharpsburg. He also
served in the Rappahannock Campaign, commanding Regiment
March to June, 1863, engaged in the Battle of Chancellorsville;
in the Pennsylvania Campaign (Army of the Potomac), being
engaged in the Battle of Gettysburg. He was breveted to
Colonel, July 2, 1863 for gallant and meritorious service
at Gettysburg.
Floyd-Jones was in
command of Ft. Independence, MA, August 15 to October 28,
1863 and of the Fortifications of Boston harbor, October
28, 1863 to March 6, 1865. He was at Detroit, MI from March
31 to August, 1865. Following the Civil War, Floyd-Jones
served in command of Newport Barracks, KY, October 12, 1865
to March 13, 1866 and of Little Rock, AK, March 27 to August
29, 1866. Following sick leave he was assigned as Acting
Assistant Inspector-General and Judge Advocate of the Department
of Arkansas, December 1, 1866 to February 13, 1867; in command
of a regiment and Ft. Smith, AK, to October, 1867; and of
Ft. Gibson and District of Indian Territory, October 24,
1867 to January 20, 1868. On June 25, 1867 he was promoted
to Colonel.
Following a leave of
absence, Floyd-Jones was in command of a regiment and Ft.
Gibson, Indian Territory, February to April, 1869. He served
as Superintendent of Indian Affairs in Idaho Territory,
from June, 1869 to November 1, 1870. From February 15, 1871
to January, 1872 he commanded Ft. Dodge, KS, followed by
commands at Ft. Hays, KS; Ft. Riley, KS; Holy Springs, MS;
Jackson Barracks, LA; and Helena, MT. He retired March 20,
1879.
