" On Sept.7,1864 the first 18 detachments left Andersonville by rail, guarded by
detachments from the battalion of the 55th Georgia, and the 1st and 3rd Georgia Reserves.
By the 12th, 7000 of the Andersonville prisoners had reached Charleston, and plans were
devoloped to foreward them to Florance, where a stockade was under construction.
The next day, the 13th, Secretary Seddon telegraphed Gen. Winder to cease sending
prisoners to Charleston, but to foreward as many as possible to Millen, in south central Georgia."

Source: O.R. Ser.II, Vol.7, pp.817-821; Also, Complied Service Records of Georgia Troops,1st and
3rd Reserves--NA,Microcopy 266. Also, Andersonville National Historic Site, Historic Resourse
Study and Historic Base Map, by Edwin C. Bearss, July 31,1970.

On Sept.17,1864, 700 prisoners left Andersonville for Shermans lines near Atlanta, two days later on the 19th, 1100 more left the stockade to be exchanged at Rough and Ready Georgia.
An additional 300 prison patients died during those same 3 days, leaving fewer than 9000
prisoners inside the palisade and just under 2000 in the hospital.

Source: O.R. Ser.I, Vol.39, part II, page 844, Series II, Vol.7, page 784 Hood to Sherman,
pages 791-792, 797, 799, 804, 808, 817-818, 822, 846, 851,879, 887, 891, 907, 1178.
Also, Consolidated Moring Reports, Entry III, RG249.
Also, Foust and Vance diaries, Sept. 16 and 19, 1864; Dennision, Diary,67,70; "Ross Diary",239.
Also, "Andersonville, the Last Depot", page 211, by William Marvel, 1994.

This should give you a start... Bob