Yes. As soon as it was considered impractical to make long stops at stations to let everybody go to toilet and wait until they were done before proceeding. Those only consisted of a bowl with a hole in the bottom and a tube onto the track.
People Also Ask
I do not know just when the practice began, but in the thirties several trains, including the Century and the Broadway, had bathtubs or showers in the lounge cars, along with barber shops. In 1950, the Southern had one master bedrrom with a shower in each set of the lightweight equipment built for the Crescent.
Do British trains have toilets like US trains do? Some do, some don't. On many commuter trains passengers only travel a short distance, these do not have toilets (the new Elizabeth Line for example), but the London to Birmingham express would have toilets.
Americans have been using railroads since the 1820s! Most of the early locomotives in America were imported from Great Britain, although the United States was quick to form a locomotive manufacturing industry of its own. American production of locomotives got off the ground in the early 1830s.
Our train cars do not have air conditioning, but the enclosed cars do have windows you are welcome to open or close at your discretion. We recommend that if you dress to be comfortable outside, you will be plenty comfortable onboard the train.
Other than a refrigerator/watercooler and a bathroom there are almost zero ammenities on a locomotive. Only way a engineer can go to bathroom is by stopping his train or if the conductor is a certified engineer he could run for while.