I have found this website for documentary film funding called the Grantmakers in Film and Electronic Media. http://media.gfem.org/ There is one requirement for entering your projects into this database is that you ave at least one foundation or government funder.
I haven’t fully investigated all of the aspects of the site yet, but I have started the profile for my film, and I poked around and found this other interesting project called The Salmon People. I liked it because it is also another personal journey film dealing with family relationships and cultural identity.
You can check out that film’s profile here at The Salmon People