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In page Enrica Clay Dillon:

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Born in 1885 in Denver, Colorado,[1] Dillon was the daughter of Judge Henry Clay Dillon and Florence (née Hood) Dillon. She was the older sister of composer Fanny Dillon[citation needed] and actress Josephine Dillon; the latter of whom was married to Clark Gable for 6 years. Dillon studied voice at Mount Holyoke College and with baritone Francesco Mottino in Milan. She had a prolific career as a dramatic soprano in Europe during the first decade and a half of the 20th century, giving more than 1,800 opera performances. She was especially active in Italy and sang at most of the principle houses in that country, including La Scala. She was particularly known for her portrayal of the title role in Giuseppe Verdi's Aida.[2]