I am volunteering with a local "Code Club" to teach programming to 8-14 year olds. We have just tried to be open and gender neutral, ending up with between 10-25% female depending on the week. Purely subjective opinion, but Jessica Yuen from the Khan Academy (https://www.khanacademy.org/talks-and-interviews/other-featu...) tutorials has been a huge example for these children (boys and girls).
I'd love to profile more examples in our code club sessions. Does anyone know of a central source for people willing to volunteer as "examples" for young computer scientists? If not, maybe we can start a google doc or something?