John A Sinclair age: 85 Known as: John Asinclair John A Sinclaire Related to:Gregory Howard, 66 Has lived in:Hyde Park, MA Dorchester, MA Boston, MA Mattapan, MA John D Sinclair age: 62 Known as: John S Duncan Sinclair Jd Sinclair D John Has lived in:Brookline, MA Boston, MA San Francisco, CA Tenafly, NJ