John T. Comès designed the older Holy Innocents Church, which was replaced by the cathedral-sized church that stands today, and it is likely that he designed this school as well. The style is a kind of Art Nouveau Jacobean. It is vacant right now, which puts it in danger, since large vacant buildings are attractive nuisances both for arson and for blue “Condemnation” stickers.
Painting the stone accents grey may have been someone’s solution to the soot problem. It was not a good idea.