Re:remembering the Stateline hotdog cart
Welcome to Roadfood, Jack!
Unfortunately, we get very few replies to these requests for information for food served 50 years ago. I know I am still trying to find out something about Topp's frozen pizza from the early 70's.
Perhaps if you gave more details, such as cross streets on State Line Rd, it might jog someone's memory. There are also several threads on recipes for chili sauce here in the Recipes and Cooking Techniques Forum.