Thank you for your thorough and inspiring post. I came here looking for ideas for a preschool storytime. Since you noted that there aren't a ton of picture books to choose from, I wanted to share the two I've used in the past successfully in a preschool storytime. "Every Day Dress Up" by Selina Alko can be read all the way through with 3-6 year olds. "Good Night Stories For Rebel Girls" is a collection of one page stories. I print out appropriate artwork or photos to create my one picture book or use props to bring these women to life.