Which preposition to use with latrines

for Occurrences 1%

Forced to do coolie labour, to dig latrines for native soldiers, incredibly humiliating, such was their lot!

of Occurrences 1%

They have had to clean the latrines of negro prisoners, and were in some cases forced to work with implements which would make their task the more disgusting.

under Occurrences 1%

We breed in an environment of asphalt pavements a body of people whose creeds are chiefly restrictions against other people's way of life, and have kitchens and latrines under the same roof that houses their God.

Which preposition to use with  latrines