Steven Farmer has written a book called Healing Ancestral Karma: Free Yourself from Unhealthy Family Patterns. I freed myself from an unhealthy family pattern by purposely not having children. I was/am too selfish in wanting freedom from restriction and commitment and I knew having kids would be a lifetime of just that. In return, I’ve been blessed with the freedom to have quiet, deep reflection on our family dynamics and come to great understanding of the karmic ties and implications. The week in 2002 after I had a big aha about my brother Jerry who had passed when I was 16, he contacted me after 37 years of me believing he was dead. I believe me coming to an understanding helped free family karma and that’s why Jerry reappeared.  I wrote about it here http://horizonsmagazine.com/blog/?p=1704