I suspect that upon finding himself behind enemy lines, he elected to remain home with his family and not hazard crossing through enemy lines, as there are no records of him found in any other unit, Confederate or Yankee.
John Farrow, Private, Captain Ichabod M. Lucas’ Company, Stewart’s Regiment, West Tennessee Cavalry,* enlisted July 5, 1863 at Bells Station by Capt. I. M. Lucas for 3 years, with the troops cut off from the regiment by the sudden and rapid evacuation of West Tennessee by Col. Richardson immediately after “Cotton Grove” was designated as a place of rendezvous - the enemy immediately intervening between these men and the command of Col. Richardson, subsequently recorded as absent with leave by order of July 27, 1863, no further records
* This company subsequently became Company E, 15th (Stewart’s) Regiment Tennessee Cavalry
M268: Compiled Service Records of Confederate Soldiers Who Served in Organizations from the State of Tennessee
Captain Ichabod Lucas, Company E. Organized July 2,1863 in Haywood County.
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In July,1863, Francis M.Stewart, formerly lieutenant colonel 22nd Tennessee Infantry, went into West Tennessee with orders to collect Dawson's Battalion, and recruit other companies to complete a regiment,which he proceeded to do. On July 27, Colonel R.V.Richardson, commanding what was known as Richardson's West Tennessee Brigade, Partisan Rangers, ordered all organizations, whether formed or inchoate, to rendezvous at Cotton Grove, Tennessee, prior to moving the brigade into North Mississippi. This movement was so precipitate that the individual companies did not have time to collect all their members, and some companies were cut off entirely and left in West Tennessee. Colonel Stewart stated he brought with him into Mississippi in August,1863,about 150 men, and on August 28,1863, the regiment was organized, and a little later other companies were assigned to replace those that had been cut off.
http://www.oocities.org/bsdunagan/14cav.htm
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NAME: John J Farrow
AGE IN 1860: 26
BIRTH YEAR: abt 1834
BIRTHPLACE: North Carolina
HOME IN 1860: District 11, Haywood, Tennessee
GENDER: Male
POST OFFICE: Wellwood
HOUSEHOLD MEMBERS:
NAME AGE
John J Farrow 26 Grocery Keeper
Louisa Farrow 22
Nancy E Farrow 3
John Farrow 2
Elisha Farrow 1
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Source Citation
Year: 1860; Census Place: District 11, Haywood, Tennessee; Roll: M653_1254; Page: 467