This window is in memory of Mary Fraser Smith, class of 1896, and College Recorder (1915-33), given in 1925 by her brother, Persifor F. Smith. The window has a theme of loyalty and was designed and created by Reynolds, Francis, and Rohnstock of Boston. Of note in this window: 'Non Ministrari, Sed Ministrare' on her scroll and at the bottom, the school's coat of arms and the seal of the alumnae association. The window is also referred to as 'Fidelitas' or faithfulness.