Sources
- Bates, p.193
- Welch
- Walter
- Thos Moore, 'What might have been: The significant closing days of the Great Rebellion'. National Tribune 21 February 1895.
- Gregory's report of the 2nd brigade's actions, 29 Mar 1865 to 9 April 1865 [does not include the 91st]
- 'Lone witness' (newspaper article about Jacob Keesey published in April 1925)