He most probably died in the Civil War. He never claimed a portion of James Sterlings estate that he was due. He was at the right age to have served nearly the whole war. There was a Francis Foster who served with the Alabama, 34th, Co G., who is buried in Chattanooga, TN that may have been him.
"United States Census, 1850," database with images, FamilySearch (https://www.familysearch.org/ark:/61903/1:1:MZY5-2SL : 20 December 2020), Francis Foster in household of Joseph Foster, Harris, Georgia, United States; citing family , NARA microfilm publication (Washington, D.C.: National Archives and Records Administration, n.d.).
1850-Harris Co., Georgia, #1208
Francis is age 7 with his parents.
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