This picture from the early 1950s shows two waitresses serving customers in a busy railcar-style diner. This style of diner had been popular as early as the start of the 20th century and was modeled after rail carriages or sometimes converted from the original train cars into stand-alone eateries.
The man who deserves the credit for this style of eaterie was a lunch wagon manufacturer named Patrick Tierney, whose prefabricated and eventually stationary eateries featured tiled floors and a revolutionary indoor restroom. And while this image may be from the 1950s, the diner is still an icon of American culture and are still popular with families, adults, seniors, and children to this day.