Glenn, you are such a bloody tease!
Tim McIntires's mother was Jeannette Nolan, whose film debut was, of course, as Lady Macbeth in Welles' 1948 film version of the Scottish play. Nolan, who had never before appeared on stage or on screen, was an accomplished radio actress who had worked regularly with Welles throughout the 30's and 40's, as a Mercury Radio player and on The March of Time. Tim was born in 1944.
Tim's biography can be found here: http://us.imdb.com/name/nm0570625/bio
Tim's most famous film role was as the dynamic Alan Freed in American Hot Wax, a great performance. He provided the voice of "Blood", the mutant canine in the cult hit A Boy and His Dog, and was an accomplished singer, musician, and composer. Troubled by drug and alcohol addiction, he died in 1986 at age 42.
I have no idea whether Orson Welles was actually Tim's Daddy, but this line in the paragraph is remarkably telling: "Handsome and husky, with a deep, rich and commanding voice of exceptionally exquisite sonority..."
BTW, there seems to be some confusion between Tim McIntire, above, and the Tim McIntyre who was in the Kennedy motorcade and who narrates a couple of assasination docs. They are two different people.