I have been recently working with Growing Power Chicago which is run by Erika Allen, daughter of Will Allen from Growing Power Milwaukee.
They are doing some awesome things!
Update: I have heard Growing Power was dissolved in 2018, but Erika is still operating in Chicago as Urban Growers Collective.
https://civileats.com/2018/03/13/behind-the-rise-and-fall-of-growing-power/
Grass Roots Organic Lawn Care 