Here is a hint. Look for relatives such as Brothers who may have joined with him. At age 36 in the 1860 census he may have had a son which also may have joined with him. Families a lot of time joined together.

Check the Muster Roll of Dawson's 19th Arkansas Infantry. This regiment recruited heavily from Sevier County. Several of it companys have several Jones listed from their surviving records. There is even a Benjamin Jones age 19 in 1862 who may have been a son listed in one company.

The bad news is that a lot of men from the 19th Arkansas became sick and died at Camp White Sulphur Springs before their records were taken. Your Benjamin Jones may have fallen into this group.