Brian M Mcmahon age: 69 Known as: Brain Mcmahan Related to:Margaret Mcmahon, 60 Timothy Decker, 52 Has lived in:Weymouth, MA Rockland, MA Quincy, MA Plymouth, MA Brian Mcmahon age: 72 Related to:Kathleen Hannon, 68 Brian Dye, 70 Has lived in:Quincy, MA Brian M Mcmahon age: 51 Known as: Brain Mcmahon Brian M Mahon Has lived in:Seekonk, MA Saugus, MA Quincy, MA Simsbury, CT