Dennis C Duffy age: 67 Known as: Denny C Duffy Dennis C Dufy Related to:Zachary Hart, 33 Has lived in:Warwick, RI Johnston, RI Dennis J Duffy age: 35 Related to:Edward Duffy, 38 Jessica Duffy, 35 Has lived in:Oneonta, NY Maryland, NY Warwick, RI Dennis P Duffy age: 70 Known as: Denny D Duffy Related to:Samantha Smith, 43 Has lived in:Dover, NH Durham, NH