WHO'S THERE?   Hope it's ok for me to reply.  My Grandmother's name was Maxwell, never met her though.  Her father was absolutely impossible to trace. All I could find was that he died at age 50 approx. I decided last April, (after 5 heart by-passes), that he is probably who I inherited the condition from.  I no longer search.  Grandma's cause of death was also heart failure.   Spiritually, I feel I know them well!