From the Mississippi Department of Archives and History Governor Alcorn Collection. Letter from A. B. Betts to Mississippi Governor James L. Alcorn, concerning Betts's appointment to the Board of Supervisors in Tallahatchie County, Mississippi, and his concerns with taking the oath of office as prescribed by law. Included is a note from H. F. Hewson, Alcorn's private secretary, giving a summary of Betts's letter.

From the Mississippi Department of Archives and History Governor Ames Collection. List of Mississippians exempted from the amnesty proclamation of May 1865 but who were granted special presidential pardon.

From the Mississippi Department of Archives and History Governor Stone Collection. Letter from A. B. Betty to the Mississippi State Board of Registration, asking to be appointed as registrar at Tallahatchie County, Mississippi.