I didn't fit either, but I was skinny as a rail back then - just too tall for my age (cleared 6' when I was 12).Had that exact bottom desk (with the double pencil slots) for 3rd through 5th grade.
And without fail, there was always one fat kid who couldn't quite fit into them. He or she ended up getting the special desk with the separate chair. Kids could be pretty mean back then...just glad I wasn't fat during my school years. (Saved that for middle age!)
