If you look up the term the "target child" or "targeted child" you'll see what Joyce meant. I was looking for her book and ended up reading more about that term. I had never heard that term before and I actually know a lot about abusive parent issues ( and family estrangement). I do believe Joyce about her abusive childhood although I understand her sister's perspective.
I'm glad her family was open ( or I should say sister, as her brother is obviously very elderly) about her story when they didn't have to be. My guess is her sister is so up in years as is her brother that they didn't feel it would cause the family embarrassment or anything at this point to have Joyce's true story out there..her sister felt it was just best to be open. Joyce unfortunately never found happiness in life at least for very long and Christmas and the holiday season can be a hard time for people who have family problems and estrangement as well as for lonely people. It could be that Christmas reminded of her traumatic holidays in her childhood, too. Just some thoughts on the time of year she committed suicide. The holiday season may well have been a tough time for her.
Of course, in winter, it was much less likely anyone would be visiting the cemetery or doing groundswork, mowing, etc and interrupt her plans. I wonder why Joyce thought her family should build her a house in Arizona. It doesn't sound like they had money. Her siblings obviously cared and care, but Joyce was obviously more at peace living her life in her own way..until the end. I wonder where she was living in late 1996. Maybe she lived close enough to walk to the cemetery? Some of the missing pieces of her story we will probably never know.