Enlisting as a PVT on 18 Jun 1898 Reginald served in I Company 7th California Infantry until 2 Dec that same year. He was commissioned as a 1LT in D Company 1st Infantry Regiment, California National Guard in March 1902 where he served while attending university. He was commissioned a LTC in the California National Guard in May of that year due to his outstanding performance in the university's corps of cadets and graduated with a Bachelor of Arts degree. As a result of this he was offered a Regular Army commission as a 2LT of infantry which was accepted and he received the commission in 1903 when he graduated from the University of California. Assigned to the 4th Infantry Regiment, 2LT Kelley departed with the regiment for the Philippines in June 1903. Once there he was posted to Sorsogon in southeastern Luzon. Allowed leave in mid-1905, 2LT Kelley then reported to Fort Thomas, Kentucky. It is probable that 2LT Kelley served with the 4th Regiment in the Ute campaign in1906. Reginald was promoted to 1LT and reassigned to the 5th Infantry Regiment in May 1909 but returned to the 4th after only 1 month and returned to the Philippines until 1910 when the regiment returned to the United States.
Reginald married Ione Candace Dille on 28 Jun 1910. He was assigned to the 4th Infantry Regiment at Fort Crook, Nebraska at that time. A daughter, Esther Myrick Kelley, was born at Fort Crook on 11 Dec 1911. She would be the couple's only child.
Promotions came quickly during the first World War. Promoted to MAJ on 20 Aug 1917 and assigned as inspector (IG) 29th Division at Camp McClellan near Anniston, Alabama. He went to France with the 29th in 1918 and was detailed at the Division Machine Gun officer to plan and coordinate the machine gun defense in the 29th Division sector. MAJ Kelley was promoted to LTC on 30 Jul 1918 and to COL on 1 Nov 1918 commanding the 116th Infantry Regiment in the Meuse-Argonne offensive after relieving COL Harris on 10 Oct 1918. He was gassed in training on 4 Dec 1918 and returned from France, 3 Aug 1919. COL Kelley was awarded the Distinguished Service Medal for his service during the war. The citation reads as follows:
"The President of the United States of America, authorized by Act of
Congress, July 9, 1918, takes pleasure in presenting the Army
Distinguished Service Medal to Colonel (Infantry) Reginald H. Kelley,
United States Army, for exceptionally meritorious and distinguished
services to the Government of the United States, in a duty of great
responsibility during World War I. First as Division Machine-Gun Officer
and later as Commanding Officer, 116th Infantry Regiment, 29th
Division, Colonel Kelley displayed sterling qualities of leadership. By
his high military attainments, sound judgment, and self-sacrificing
devotion to duty he proved to be a material factor in the successes
achieved by the 29th Division in the offensive actions in which they
participated."
He served in the Quartermasters Corps from 13 Aug 1919 to 24 Aug 1919. He graduated from the School of the Line in 1922. COL Kelley then graduated from General Staff School 1923 and from 1923 to 1927 was an associate professor of military science and tactics and the University of California. He attended and graduated from the U.S. Army War College in 1928. COL Kelley was assigned 1929-1932 to Minneapolis, Minnesota as instructor of the National Guard in that state. In 1933 he was at Fort Benning as Director of Department of Experiment.
Ione passed away from injuries sustained in an automobile accident in Newnan, Georgia in 1935. COL Kelley then returned to the Philippines and commanded the 45th Infantry Regiment of the 23rd Infantry Brigade (Philippine Scouts) in 1937 at Fort McKinley, Philippines. It was in 1937 on this tour of duty that he met and married Ruth Steere Reno Fuller on 18 Sep 1937 in a ceremony attended by General and Mrs. Douglas MacArthur. He was next assigned as Chief of Staff of the 87th Infantry Division from 25 Aug 1940 to when he retired 9 Jun 1942 due to disability in line of duty. He was 62 years old at that time. However, it appears that he may have returned to active duty in some roll from 1 Jul 1942 to 20 Feb 1944 due to wartime exigencies.
After retirement Reginald and Ruth lived a more normal life moving to Melrose, Florida. Reginald became the senior warden of the Trinity church in Melrose and Ruth worked in the Women's Auxiliary of the Diocese of Florida becoming president of that organization. There is little to no public record after his retirement possibly due to health concerns.
COL Kelley died on 18 Oct 1963 in Jacksonville, Florida. He was interred in Arlington National Cemetery in Arlington, Virginia.
Brother of CPT (Chaplain) Leslie Constant Kelley. They were the great, great, great-grandsons of Elihu Stow who was a soldier in the Revolutionary army during nearly the entire war. He enlisted as a private in Capt. Alden's company, Samuel Webb, Colonel, April 21, 1777, was mustered in Nov. 1777, taken prisoner, exchanged, July l, 1778, promoted to Corporal, March 20, 1780; Sergeant, July 1, 1781. Reginald's father had served as a 2LT in B Company 100th Ohio Infantry (USA) during the Civil War. Reginald's daughter together with her husband and 3 of their children were interned in the Philippines by the Japanese during WWII.
Note: This memorial was published 50-years after his death.