 In her forty-eight years at Bryn Mawr College Thomas continued to maintain a home in the Deanery, overseeing several expansions and renovations, as well as decorating the interior with items collected from her international travels.In 1933, she arranged for the Deanery and its furnishings to be turned over to the college for use as an alumnae house.She died two years later at the age of seventy-eight.