Alderson Fletcher Hathcock, the second son of William, according to records in the National Archives in Washington, D.C., was born in 1846 in St. Clair, Alabama. At the age of 18, on 5 February 1864, he enlisted as a Private in Company G, 12th Regiment of the Tennessee Volunteer Calvary, USA. His place of enlistment was Charlotte, Tennessee on 30 April 1864, then was transferred to Company D of the same regiment. It was unusual that he would have enlisted with the Federal Forces rather than the Confederate Forces, being a native of Alabama. He undoubtedly traveled to Tennessee for the specific purpose of enlistment. He was mustered out of service on 7 October 1865 at Ft. Levenworth, Kansas. After the war he married Sidney Adaline Issacs, born in 1850, daughter of Samuel Issacs, on 19 February 1870 in St. Clair, County. Their children were: Lucy E., born 11 May 1871, died 11 April 1885; Mary Ann, born 10 July 1873, married 26 May 1888; Francis M., born 5 May 1875, married 20 September 1888; Robert Pickney, born 9 April 1877, married Edna Thompson whose sons were Lewis and Richard; "Nellie R., born 26 January 1879; William Jackson, born 27 February 1881, married Diller Tucker; and Samuel L., called Fayette, born 23 March 1883 and died 20 July 1893.

All these children were born in the vicinity of Slate, Alabama in St. Clair county. Alderson Fletcher Hathcock died in St. Clair County, 23 July 1883 at the age of 37 of typhoid pneumonia. His wife, Sidney Adaline later married Thomas Mearge Harris on 18 December 1889 at her residence in St. Clair county. In 1893 she was living in Walker County, Alabama, near Powelville. Neely R. is believed to have married Howell Dorough of Shelby County, Alabama and is believed to be buried in Tallassee, Alabama. William Jackson is buried at the Griggs Place in Marion County, Alabama. His son, Robert Pickney, lived on Star Route, Eldridge, Alabama 35554 in 1974.529

1870 Census of Ashville, St Clair Co AL
Name Age
Fletcher Hathcock 23
Adeline Hathcock 20

1880 Census of Crawfords Cove, St Clair Co AL
Name Age
Alderson F. Hatchcock 31
Sidny A. Hatchcock 30
Lucy E Hatchcock 9 dau
Mary A. Hatchcock 7 dau
Francis M. Hatchcock 5 dau
Robert P. Hatchcock 3 son
Nelley R. Hatchcock 1 dau