Juan Antonio Dominguez Dominguez, son of Fermin Dominguez Merlo and Juana Dominguez Amaral, was married three times.

His first marriage was to Paula Rivera. They had 11 children: Carmen Maria, Debora, Eliot, Maria Esther (a/k/a Esther), Aurea, Luis Herminio (a/k/a Minin), Ramon (a/k/a Moncho), Dalila, Rosa Maria (a/k/a Ana Rosa), Elba, and Fernando. Paula Rivera died about 19 days after giving birth to Fernando.

Juan Antonio’s second marriage was to Margarita Ralat Colon (born on May 19, 1917 in Ciales, Puerto Rico). They married in 1933. They had 4 children: Priscilla, Vivian, Elsa, and Blanca Nieves.

Juan Antonio’s third marriage was to ?????. They had one daughter: Maria Magdalena (a/k/a Margie).