Her father was Archibald McDuffie (1807-3/1885 Lowndes Co., Ga.) and Matilda Brantly (1811-1887 Ga.)

The following contributed by C. Bozeman:

CSA pension on line in GA virtual vault (Aachives) says she received a pension for Robert C Anderson's service in Co K of 54th Ga regiment. Irwin county is next to Ben Hill.
Title Anderson, Nancy B
Last Name Anderson: First Name Nancy
Middle Name B
County IRWIN ; Record Type Document
Cite as Confederate Pension Applications, Georgia Confederate Pension Office, RG 58-1-1, Georgia Archives
Digital Collection Confederate Pension Applications
Record ID USAMILCONFEDGA_182675-00505
Date created 2009-08-13

Robt C Anderson M 45 Georgia
Nancy Anderson F 40 Georgia
Sarah M Anderson F 18 Georgia
Caroline Anderson F 16 Georgia
Martha Anderson F 14 Georgia
Mary Anderson F 12 Georgia
Joseph Anderson M 11 Georgia
Robt Anderson M 9 Georgia
Andrew J Anderson M 10 Georgia
Joe Anna Anderson F 6 Georgia
Martha Anderson F 0 Georgia
Wright Weekley M 10 Georgia
Wm Weekley M 8 Georgia
Household ID: 497 , Line Number: 29 , Affiliate Name: The U.S. National Archives and Records Administration (NARA) , Affiliate Publication Number: M593 , GS Film number: 000545643 , Digital Folder Number: 004263440 , Image Number: 00339
Citing this Record
"United States Census, 1870," index and images, FamilySearch (https://familysearch.org/pal:/MM9.1.1/MCSP-15M : accessed 16 February 2015), Nancy Anderson in household of Robt C Anderson, Georgia, United States; citing p. 67, family 497, NARA microfilm publication M593 (Washington D.C.: National Archives and Records Administration, n.d.); FHL microfilm 545,643.
By 1900 she is widowed and living with Charles M. Anderson family, still in Irwin Co. but says she had 12 children, but only 6 living.