Sponsored Links Denis O'Brien (New York politician) Complete Dating History Add new Post Sponsored Links Denis O'Brien (New York politician) wiki Login to Edit Date of Birth: 13 Mar, 1837Zodiac Sign: PiscesPlace of Birth: Ogdensburg, New YorkDied: 72 years agoDate of Death: 18 May, 1909 Denis O'Brien (New York politician) Latest Videos