- Created by: Kit and Morgan Benson
- Added: 31 Dec 2005
- Find A Grave Memorial 12832352
Find A Grave, database and images (https://www.findagrave.com : accessed ), memorial page for Pvt John O'Brien (1851–25 Jun 1876), Find A Grave Memorial no. 12832352, citing Custer National Cemetery, Crow Agency, Big Horn County, Montana, USA ; Maintained by Kit and Morgan Benson (contributor 46483611) .