My wife, her parents, and her grandparents on her fathers side..went to Graceland in 78 and for some reason they were not open. Her grandfather said who he was and security checked and took them into the back... They had a full tour of Graceland and sat and met all the family that was there... Her grandfather has passed and her father cannot remember the relationship. How would one go about figuring it out... Her grandfather Was John "Bud" Vaughn.. I am sure it was through his mother's side... Anyway any help would be great..