Hi William,

Can't help you with Jacob but I found this about Isaac. He's listed in the Confederate Memorial Rolls published in the late 1880's . http://www.tngenweb.org/civilwar/memrolls/cnames.html This link should get you there. Didn't know if you were aware of this or not. I've got Pvt. John D. Hashbarger of Co.K on this list also from the 19th Inf. Good luck in your research and God Bless !!!!
Glenn Land