Marc Andreessen grew up in Wisconsin and went to the University of Illinois.
I co-founded Open Market (a unicorn in tech Bubble 1.0). I grew up in West Virginia in a trailer with no indoor plumbing & wood heat. Our high school graduated 99 and about 10 of us went on to college. (I did go to an ivy league school, but I strongly suspect it was on quota because WV was so underrepresented.)