Individual Details

Listed as "Augusta" in Family of Moses Allen. 1850 Census with his father as Enumerator lists him as Augustus A., male, age 11 - born in 1839 - possibly the date of birth as 1841 was also wrong.

Peter & Mary seem to have named at least most of their sons after men he had known, or heard about from his father, back in New York. Peter B. Porter served in the War of 1812 with the elder Peter and was on the Erie Canal Commission - he had a shipping business on the Niagara River with his brother Augustus. Peter named his first son Augustus, another son Peter B. Porter. Dewitt Clinton was also very much involved with the building of the canal and the youngest Allen son was named Dewitt Clinton Allen.

Augustus and Mary Keeton were married at her father's home in Polk Co AR by Wiley Stinnett, Justice of the Peace

Enlisted in the Union Army in Missouri, 1 Aug 1862 as a Private. Company F, 8th Cavalry.

1870 Census. P.O. Cove, White Twp, Polk, AR, Hh 370
Augustus A. Allen, 31, farmer, b. AR
Mary, 29, b. MS
John H., 7, b. AR
Mariah H., 5, b. AR
Mary E., 2, b. AR

1880 Census. Scott Co AR; Hickman Twp; p.390b
Augustus, age 41 [again indicating he was born 1839 rather than 1841], Farmer, born AR, both parents born in NY. Mary was age 38, born in MS. 5 children listed as shown. Also John Cauley, age 20, working as a hired hand - John was born RI as were his parents.

Middle name said to be Almond? Perhaps Alman or Almon?

He is not listed as an heir in his father's Will of 1901. A Civil War Pension application in Arkansas in 1924 was not his - it was the application of an Augustus Allen living in Washington Co AR.

I eventually found this:
Augustus fought on the Union side during the Civil War - he filed for his Invalid Pension on 20 Mar 1877, Mary filed for widow's pension [7 Apr 1883] until she remarried [24 Apr 1884], and Minor's Pension was filed for the two younger daughters on 1 Sep 1887. The file is lengthy. Mary refiled some 10 years after the death of her 2nd husband and that application lingered in limbo for about six years before she finally received her payments.
During the war, Augustus contracted lung fever [pneumonia] and chronic diarrhea. He was first in the Regimental Hospital at Duvall's Bluff, then in Ward 6, St. John's Hopital in Little Rock AR, then sent to Harvey General Hospital in Madison, Wisconsin on 24 Oct 1864 & returned to duty 13 Jan 1865. He never really recovered and was considerably debilitated, dying of pneumonia attributed to his weakened condition on 9 Jan 1882.
He enlisted 15 Sep 1863 and was mustered in 30 Oct 1863, in Co F of the 8th Regt of the Missouri Cavalry and served under Col. W. F. Geiger; later attached to Co K of the 11th Regt. His description given as 5' 6", light compexion, auburn hair, blue eyes. [Another document says he was 5' 10'] He was discharged 17 Jul 1865 at Little Rock, AR.
When Augustus applied for his pension he had trouble with proof of his service because he didn't know the wherabouts of any of his old Regiment. He served in Missouri but his home was ever in Arkansas. When he was discharged at Little Rock, his unit was in St. Louis. Augustus was eventually awarded pension of $6 from Jul 18, 1865, ending 9 Jan 1882 when he died. He was deemed to be one-half disabled. I'm not sure the pension was ever started before his death.
The Surgeon General's Office made report on 13 Dec 1878. It says that Augustus A. Allen, Co. F, 8th MO Cav entered G.H. [General Hospital], Little Rock AR on 11 Jul 1864 with chronic diarrhea and returned to duty 8 Aug 1864. Re-entered same Hospital on 18 Aug 1864 with Remittant fever and was furloughed 6 Sep 1864. St. Johns College Building was used for the General Hospital. Entered Harvy G.H., Madison, Wis. on 24 Oct 1864 with diarrhea and returned to duty 14 Jan 1865. The registers of sick & wounded of the Reg sub. to 14 Jul 1863, are not on file.
On 14 Apr 1881, R. G. Jennings, M.D. also made Surgeon's Affidavit. Dr. Jennings was age 47, of Little Rock, Pulaski Co, AR, Surgeon at St. Johns General Hospial. In 1864 the said soldier was admitted ...for treatment for chronic diarrhea and lung disease and was under deponents treatment about 14 weeks and no material improvement taking place in his condition he was furloughed and sent north for the benefit of his health. He was furloughed on deponents certificate of disability.
A letter written by Dr. Jennings on 15 May 1883, states that he was personally acquainted with Augustus A. Allen and his father previous to the War and knew full well how both suffered on account of their union principles. He could not provide any additional specific history of his treatment, but thought that might be found in the St. Johns Hospital case book.
Medical Affidavit, dated 20 Jun 1882, stated that Elijah Leming, Jr. attended Augustus A. Allen during his last illness and he died of pneumonia in Scott Co AR on the 9th day of January 1882. A letter written by Dr. Leming on 15 May 1883, stated that he had attended Agusutus A. Allen in his last illnes, double pneumonia, proving fatal on the third day. Some two or three weeks before I was called to see him he was attacked with pneumonia while coming from market (some forty miles distant) and was attended by my brother Dr. J. K. Leming. He recovered slowly. I was called to see him on account of the absence of my brother and found the patient much emaciated and his strength gave way rapidly. This was the only time I have treated him but have known him as an acquaintance ...he often complained of pain of the chest...do not think he was able to do more than half the amount of manual labor a healthy man should do. On 6 Jun 1883, Elijah Leming Jr. made a 2nd affidavit on behalf of the Widow, stating that he was 28 years old and had been a physician for 6 years - he had known the soldier for five or six years but as an acquaintance, had not treated him until January of 1882. He was a weakly man with predisposition to lung disease, having had three or more attacks of pneumonia during the time I've known him. The last one proving fatal; I did treat him in his last illness which was double pneumonia.

One of papers stamped 16 Apr 1916 when Mary was attempting to reinstate her widow's pension notes that he was age 24 when enlisted, 5' 10" tall, fair complexion, eyes blue, hair light. Born Sevier Co, AR. Farmer. Transfered to Co K, 11th Regt, Missouri Cavalry, Jul 1865 [Probably to be discharged at Little Rock.] Discharged as a Private.

One of the depositions given when Mary tried to reinstate her widow's pension was that of Thomas W. Stone, 20 Oct 1921. Mr. Stone was a real estate dealer and had known all the parties involved. He had been in Scott County for 71 years. He pointed out that he knew of Augustus A. Allen's family from the early days and that he was commonly called "Bud" Allen.

OLD HON CEMETERY
Allen, Aug. A., No dates, Co F 8 Mo Cav
Allen, C.O., No dates, Age 3 months 5 days
Allen, Henry, No dates, Age 17 yrs 9 mos 3 days
Allen, Mary, No dates, Aged 81yrs 9 months 9 days, W/o A.A.
http://www.rootsweb.com/~arscott/cemolhon.htm

Birth	21 May 1841	Sevier County, Arkansas
Marriage	10 Mar 1861	Sevier County, Arkansas - Mary Keeton
Military	1863 - 1865	Co F, 8th Regt, Missouri Cavalry, USA, Civil War
Death	9 Jan 1882	Scott County, Arkansas

Spouse	Mary Keeton (1841 - 1923)
Child	John Henry Allen (1863 - 1880)
Child	Mariah Helen Allen (1866 - 1941)
Child	Mary Elizabeth Allen (1868 - 1957)
Child	Sarah Rhoena Allen (1875 - 1960)
Child	Charles Orrin Allen (1880 - 1880)

Father	PETER BUELL/BENTON ALLEN (1811 - 1901)
Mother	MARY ROWENA HOSKINS (1815 - 1885)
Sibling	Henry Clay Allen (1843 - 1912)
Sibling	Nathaniel Orrin "Nat" Allen (1844 - 1933)
Sibling	Peter B. P. "Port" Allen (1846 - 1926)
Sibling	Mary Adeline "Addie" Allen (1848 - 1936)
Sibling	Charles Edward Francis Allen (1850 - 1905)
Sibling	Martha Elizabeth Allen (1852 - 1936)
Sibling	Dewitt Clinton Allen (1854 - 1918)
Sibling	PHILENA JOSEPHINE "JOSIE" ALLEN (1856 - 1935)