Clay, that J. S. Kendrick was Nathaniel Kendrick's nephew. He was born in 1844 and Nathaniel was born in 1824 and they both were from Claiborne Parish.
On Nathaniel's Pension application he stated he enlisted in Oct 1863 in Capt Cally's regiment at Homer, Louisiana. I don't have John Knighton's pension yet but am ordering it today.