The first two titles can be found at:
With the Light Guns in '61-'65 https://tsw.createspace.com/title/3888469
Confederate Women of Arkansas in the Civil War 1861-'65 https://www.createspace.com/3884884
I am now finishing up a version of Col. George Washington Rains "History of the Confederate Powder Works" that will include footnotes and an added appendix containing a long article titled "Notes on Making Saltpetre from the Earth of the Caves", which was printed in the Clarksville, Tennessee, Chronicle in November, 1861.
If any one has any suggestions of books they would like to see reprinted at a reasonable price, please send them to me. These books have been out of copyright for decades and should be available without having to pay an arm and a leg for them.