from [United States government. «Daniel Edgar Sickles Major General, United States Army». Arlington National Cemetery National Website. Consultado el 28 de julio de 2016.]: "His ambition to fit himself for the diplomatic service had led him to take up the study of French and Italian, and in this way he met Therese Bagioli, daughter of an Italian music teacher." (other sources say he knew her since infancy)
assumption.edu
«Archived copy». Archivado desde el original el 15 de septiembre de 2006. Consultado el 12 de junio de 2008.
«again». Archivado desde el original el 14 de septiembre de 2006. Consultado el 23 de enero de 2022.
From [«Albuquerque Road Show – Want to Meet General Sickles?: A Rapscallion's Résumé». WGBH Road Show pages. Consultado el 20 de enero de 2007.] paragraph 3: "Sickles was also a committed womanizer who, at age 33, married the 15-year-old Teresa Bagioli, a charming and intelligent girl who could speak five languages."
