2 examples of sub-district in sentences

THE BOSTONIANS It was precisely on the day set for the Brentwoods' westward flitting that the postman, making his morning round, delivered David Kent's asking at the house in the Back Bay sub-district.

This territory will be divided into sub-districts, and there will be assigned to each a Deputy-Provost-Marshal.

2 examples of  sub-district  in sentences