Scott Ellsworth, a Tulsa native, first became interested in the 1921 Tulsa Race Massacre as a young history student in college in the 70s. He has written two books on the subject. This book tells the story of his decades long journey to unearth the truth long hidden as well as the stories of survivors, activists, and others he met along the way. Very respectful and informative, this is a good jumping off point if you are new to the topic topic.