ooooo there was a henry's in the town where i escaped from!!! they closed in the early 80s i believe, but i remember them.....
I think there are still a few of them in Michigan. If I put the wikipedia link to that here this will probably get robo-tagged as spam.
you could edit the post to put the wiki link OR if you do put it in the comments and it gets spammed, as the OP you should be able to unspam it, if not, just let me know! :)
There were two in the Benton Harbor/St. Joseph area when I was a whipper-snapper. It was on Red Arrow Highway near the drive in theater (both long since closed.)

Somehow, my parents got me to try buns with sesame seeds.

One of the few things I'd recall fondly from that area.