This bust was originally on National Park grounds - this area was traded for other lands to allow Vicksburg to expand. The text of the plaque reads:
STATES RIGHTS GIST
Brig. General (C. S. Army)
Commanding Brigade
Walker's Division
Johnston's Army
Brig. Gen. C.S. Army Mar 20, 1862
Killed in Battle (Franklin. Tn.) Nov. 30, 1864
From Wikipedia:
LINK
"States Rights Gist (September 3, 1831 - November 30, 1864) was a lawyer, a militia general in South Carolina, and a Confederate Army brigadier general who served during the American Civil War. A relative of several prominent South Carolinians, Gist rose to fame during the war but was killed before its end at the Battle of Franklin (1864) on November 30, 1864. His name was based on the nullification politics of his father, Nathaniel Gist. Nathaniel Gist was a disciple of John C. Calhoun and chose his son's name to reflect his own political sentiments."
Details on the sculpture from Smithsonian:
LINK
SCULPTOR:
Brewster, George Thomas 1862-1943
FOUNDER:
Gorham Manufacturing Company
SUBJECT:
Gist, States Rights
MEDIUM:
Bust: bronze; Base: polished dark grey granite;
Foundation: concrete
TYPE:
Sculptures-Outdoor Sculpture
Sculptures
OWNER/LOCATION:
Administered by United States Department of the Interior National Park Service Washington District of Columbia
Administered by Vicksburg National Military Park 3201 Clay Street, Box 349 Vicksburg Mississippi 39180
Located Vicksburg School Confederate Avenue Vicksburg Mississippi
DATE:
Dedicated 1915
TOPIC:
History--United States--Civil War
Portrait male--Bust
Occupation--Military--General
CONTROL NUMBER:
IAS MS000194
NOTES:
Save Outdoor Sculpture, Mississippi survey, 1993
National Park Service, American Monuments and Outdoor Sculpture Database, MS7002, 1989
SUMMARY:
Bust of Brigadier General States Rights Gist in uniform. The front of the plinth and base have inscribed plaques
DATA SOURCE:
Art Inventories Catalog, Smithsonian American Art Museums