Mustered into service as a Private on July 29th, 1861
Died April 1911
Buried Holy Cross Cemetery, Marion County Indiana
Private O'Conner was captured at the Battle of Gettysburg on July 1st, 1863 and sent to Belle Isle in Virginia. He would eventually be exchanged and was discharged on March 18th, 1865.
He filed for a pension in June of 1883.
In the 1930's the American Legion in Indiana recorded the burial locations of military veterans. They listed John as being buried at the Holy Cross Cemetery in Indianapolis Indiana. Section D, Block 2, Lot 38. Date of burial was April 9th, 1911.
No photograph. Possibly in a unmarked grave.