O’Niel, John

Rank: Private

Unit: 2d Dragoons

Enlisted: June 26, 1846 in Boston, Massachusetts. He was 21.

Hometown: Milburg, Massachusetts

Occupation prior to enlistment: Tailor

Campaign: Mexican American War

Died: 18 August 1846

Cause of death: Drowned

Location of fatality: Matamoras, Mexico