Hallowell worked as an artist and had a studio in Paris. She often lived with her aunt, Sarah Tyson Hallowell and grandmother, Mary M. Hallowell in Paris and the small town of Moret-sur-Loing, which is located six miles from Fontainebleu.Perot Family Papers - Collection 1886. The Historical Society of Pennsylvania. April 2004. pp. 13, 14. Retrieved August 17, 2014.
