John G O'Callaghan age: 54 Known as: John T Callaghan John G Callaghan John G Ocallagh Related to:Kathleen Lennon, 64 Has lived in:Winchester, MA Reading, MA Boston, MA Burlington, MA John O O'Callaghan age: 81 Known as: Joh O'Callaghan John Callaghan John O'Ocallaghan John O'Callahan Has lived in:Avondale, AZ Haverhill, MA Amesbury, MA Maricopa, AZ John J O'Callaghan Known as: J O'Callaghan Has lived in:Burlington, MA East Sandwich, MA John V O'Callaghan Deceased Known as: Joh O'Callaghan John J Callaghan Ocallaghan Joh Related to:Dorothy Jennings, 103 Has lived in:Revere, MA Winthrop, MA