Billion dollar benefactors: Minnesota's charitable foundations

Maybe you’ve heard their names intoned among the sponsors of a public radio program, or seen them acknowledged on the wall of an arts institution or on the back page of a nonprofit’s brochure.

But chances are you haven’t heard of the vast majority of Minnesota’s 1,450 charitable foundations.

That’s the way some of them like it, preferring to keep a low profile.

http://www.startribune.com/billion-dollar-benefactors-the-stories-behind-minnesota-s-charitable-foundations/345771812/