I want to learn more about the woman behind the myth

I learned about Harriet Tubman when I was in grade school (many. many years ago, but that's a topic for another day). I remember having to do a report on her. I also vividly remember Momma telling me what an amazing woman she was, how I couldn't go wrong if I emulated her strength. Momma called her the lowest of the lowest. What she meant by that is the on the social scale, there are white men, white women, black men, and last, black women. "The Tubman Command," I feel is going to provide insight to the woman behind the myth, a truer sense of who she was than I ever learned growing up.