Dear Ma'am,
The Georgia State Library and Archives has the microfilm of the regiment's Compiled Service Records. I, too, have the microfilm. These are the records that are at the National Archives. Please contact me via my personal email address and I will provide you my initial notes on your two ancestors and will work with you on other information.
Respectfully,
Gerald D. Hodge, Jr.
War Between the States Historian
Warner Robins, Georgia
Historian: 39th Georgia Volunteer Infantry Regiment
http://39thgavolinfrgt.homestead.com/39thHomepage.html