SHEEHAN - John P. of Wantagh, NY, formerly of Greenpoint, Brooklyn on October 18, 2015 at the age of 80. Beloved husband of Mary for over 59 years. Loving father of John (Debbie), Robert (Kerrie), and Karen Knoebel (Jim). Cherished grandfather of Nicole, James, Brian, Patrick, Daniel, and Kevin. Adored brother of Eleanor Stock, the late Joseph, and the late Thomas.