[3] Like his father, J.C. Gibson Jr. would marry twice, in this case to Mary Georgia Shackelford in 1870 and to Florence Eastham Daniel in 1901.
By 1860, Gibson had settled slightly to the north in nearby Fauquier County, Virginia and farmed.
His brother Eustace became a captain, and their youngest brother Ned left his studies at the Virginia Military Institute to become a sergeant in the unit before leaving regular army service to work with Mosby's Rangers after Federal troops occupied much of Northern Virginia.
His elder brother William St. George Gibson, a lieutenant of the "Little Fork Rangers" in the 4th Virginia Cavalry died at the Battle of Antietam, although his younger brother Eustace recovered from a severe abdominal wound received at the Battle of Gettysburg.
A Conservative, he was one of two delegates elected from the northern Piedmont constitutional convention district made up of Fauquier and Rappahannock Counties, with fellow Confederate and lawyer R. Taylor Scott being the other.