When I began researching the Ark civil war ties, I discovered that it was beneficial for me to also get as much information as I could about relatives that lived close by in the 1860 census. This has been a tremendous help because it has helped to create the "big picture" of my family. In my particular case, I learned that all of them started out confederate. But, one son was killed by confederate geurillas. Next thing ya know, his father goes all the way from sw Ark to Fayetville, enlists Union, all by himself & then I guess the word spread & next thing ya know different family members start getting put in the brigade guard house & less than 6 mo after he enlisted union, over half the family deserted the confederate cause & enlisted Union whether it be an Arkansas regiment or Missouri regiment. Oh, that's another good thing to look at--the Missouri soldiers on confederate & union side. There were a lot of Arkansas citizens in Mo regiments. Good luck with your search and have fun with it. And don't forget to look for different spellings of his last name--someone may have written his name down as Johnston instead of Johnson. They have three different spellings for my ancestor in the military records archives & it's all the same person.