Theirs was among a number of hamburger chains that proliferated in the Midwest and other non-coastal areas during the Depression. Among the chains that got their start then were Little Canary Castle (Winston-Salem NC, 1931), Krystal (Chattanooga TN, 1932), Wimpy Grills (Bloomington IN, 1934)...
Sanitation? You mean cleaning the tables? I was under the assumption all restaurants did that. They only give you one menu per table and that is a throw away menu. I had to ask for a printed bill otherwise they showed you your bill on a tablet screen that was just a bit...