In Pennsylvania, but outside of Pittsburgh I have lived in two homes that had a setup like described here in the basement. The one was actually still earth walls in most of the basement in a house built 1870/1880. The toilet was no longer in use, (I never tried to use it at least) but there was also a massive utility sink, medicine cabinet, and space for a shower. This room also shared space with the furnace and hot water heater… and had a glass paned door that went to steps up to the ground level. This room was cement floor, but then connected to an earthen floor room that would give access to the kitchen via a flight of steps.
——
The other house was much more modern, built sometime between 1950-1970… and had a cement floor etc.