Are you sure that "in the same chapel" doesn't simply mean "in the same church" rather than side chapel or other smaller oratory within a church? Please correct me if I'm incorrect, but I would assume that "saying their prayers" means not a private devotion but attendance at a Sunday morning service of worship (most likely Morning Prayer from the BCP), and that such a service would likely be in the nave rather than in some smallish chapel off to the side (at least in a parish church as opposed to a cathedral).