Your outhouse is 1 holer?

Back in the 1960s a horse drawn "honey wagon" still used to make the rounds in High River Alberta. Most of the outhouses in town had at least 2 seats, more often at least 2 on the male side and another 2 for the female side, with no partitions except between the male and female sides of the outhouses.

A CBC drama about post WW I troops being kept in service after the Armistice, to send to Russia against the communists, had a realistic portrayal of troops sitting around in a real military latrine of the era, talking to each other while seated on the "thrones" with no partitions around the openings.