Dennis C Duffy age: 68 Known as: Denny C Duffy Dennis C Dufy Related to:Zachary Hart, 34 Has lived in:Warwick, RI Johnston, RI Dennis J Duffy age: 36 Related to:Edward Duffy, 39 Jessica Duffy, 36 Has lived in:Oneonta, NY Maryland, NY Warwick, RI Dennis P Duffy age: 71 Known as: Denny D Duffy Related to:Samantha Smith, 44 Has lived in:Dover, NH Durham, NH