Which preposition to use with messroom

at Occurrences 1%

The dining hall at Brill was a more elaborate affair than the messroom at Putnam Hall, but the Rovers were used to dining out in fine places, so they felt perfectly at home.

by Occurrences 1%

Some of the buildings are allowed to remain empty for the pleasures of tourists; others are occupied for military purposes, and the Rung Mahal, one of the most beautiful, formerly the residence of the Mogul's favorite wife, is now used for a messroom by the officers of the garrison.

in Occurrences 1%

Caragol achieved equal success with the forty-five men who had taken possession of the machinery and the messrooms in the forecastle.

Which preposition to use with  messroom