Describe each Mirabal Sister and How does each oppose Trujillo?

Patria

The oldest of the Mirabal sisters, she is the most religious. At first she planned to enter a convent but then chose to marry Pedrito Gonzales at the age of 16. Her full name is Patria Mercedes Mirabal.

Dede

Bélgica Adela "Dedé" Mirabal-Reyes, the second oldest of the Mirabal sisters, and the only one to survive the Trujillo regime. She is married to Jaimito during the action of the story, but the reader learns that they divorced in 1984. They have three sons: Enrique, Rafael, and David.

Minerva

María Argentina Minerva Mirabal, the third Mirabal sister, and the one most wrapped up in the revolution. She and her revolutionary husband, Manolo Tavarez, have two children: Minou and Manolito.

Gradesaver's summary will help you with the details to each of the girl's opposition.

http://www.gradesaver.com/in-the-time-of-the-butterflies/study-guide/short-summary/