Richard D Callahan age: 60 Known as: Rich Callahan Richar D Callahan Related to:David Roy, 78 Donna Roy, 75 Has lived in:Lowell, MA Maynard, MA Gardner, MA Richard J Callahan age: 77 Known as: Richar Callahan Callahan Richar Related to:Marilyn Callahan, 90 Has lived in:Lowell, MA Woburn, MA Vidor, TX West Newton, MA Richard J Callahan age: 72 Known as: Dick J Callahan Rick J Callahan Related to:Mary Meehan, 72 Emily Callanan, 31 Has lived in:Lowell, MA