The largish gent in the center is Tom Green. (No, not that Tom Green, else he'd be sticking his tongue in the ear of the person next to him.) The middle row includes Mr. Green's five wives, and he is currently being prosecuted for polygamy.
It looks like an idyllic scene in the picture. In reality the family was destitute, thrown out of a mobile home park and forced to find a remote land in Utah on which they could settle. The home was destroyed by a windstorm at one point and at another point one child was killed in a fire.
Mr. Green's apparent m.o. was to marry these women in their teens, then divorce them and continue to live with them while they received welfare. But as time went by he couldn't afford to pay the bills, especially since his "job" was selling magazine subscriptions all over the west. Work that left him living out of his car - until that car broke down.
If he divorced them I'm not sure why it was considered illegal. I'll allow for any lifestyle people want to take up, but this one doesn't seem to have worked very well for him.