I have a couple of ideas for a simple logo in black and white that fit your theme.
Your home page can contain a form, or a link to the page where visitors will enter their information.
One page would keep it simple and quickest to load.
I actually fit the demographic you are reaching out to, and because of the sensitive subject matter, and the fact that it is a nonprofit, I feel that my ideas for your page would are very simple but perfect for your audience and theme.