You're in luck, and it happens that we're very distant cousins. Here's the information I recently got from my mother (who is from Isabela):
My mother remembers her grandfather as “Papa Guango†Juarbe, believed his name to be Juan Juarbe, and grandmother “Mama Ruca†Aldarondo (don’t remember the first name). They had the following children:
Fernando Juarbe Aldarondo, Justa Juarbe Aldarondo (my grandmother) and Josefa Juarbe Aldarondo (her identical twin), Francisco (“Pacoloâ€), Pascasio (“Cachoâ€), José (“Pepeâ€), Anselma (“Lenâ€), Carlos, Sole (man’s name), MarÃa (“Titoâ€).
Josefa Juarbe Aldarondo married her cousin Félix Juarbe, and had Pinera (deceased), Justa (deceased), Irma (lives in RÃo Piedras), Gladys (deceased), Delia (lives in Isabela), Asia (deceased), Luis (deceased), Juan (deceased, lived in Cuba, but died in Isabela), Eduardo (deceased), Lumen (lives in RÃo Piedras).
Francisco Juarbe Aldarondo married Aleja Saavedra, and had a son she remembers by the nickname “Totó†(deceased), Rubén (deceased), Sol MarÃa (lives in Isabela), Judith (lives in Isabela), a daughter nicknamed “Nana†(not sure, could be Eduarda, who lives in Isabela), and “Johnny†(lives in the States).
Pascasio Juarbe Aldarondo married a woman she remembers by the nickname “Melo†López (deceased), and had Pedro (deceased), Miguel Angel (deceased), Vicente (deceased), Susana (deceased), Emilia (deceased), “Melita†(deceased), “Meca†(still alive, late 80s, lives in RÃo Piedras), Juana (80s, lives in RÃo Piedras, has two daughters).
José (“Pepeâ€) Juarbe Aldarondo married a woman from Isabela, can’t remember the name or surname, and had Carmen, “Pepita†(believed to be Josefa), Luz Emilia, Ana, Imeria, Ramón, “Pepito†(believed to be José), “PilÃnâ€, y Reinaldo.
He also had a daughter from an extramarital affair by the name Irma (deceased). Don’t know the mother’s name. She married Antonio Grajales, and had a son, Antonio.
Anselma (“Lenâ€) Juarbe Aldarondo married Victorio Roldán, and had Patria, “Toyita†(believed to be Antonia), “Lelaâ€, Blanca, and another daughter (can’t remember name).
Carlos Juarbe Aldarondo married Emilia Alfaro Román (sister of my grandfathers Ezequiel and Felipe), and had a daughter, Agustina (“Gorgoâ€).
Sole Juarbe Aldarondo married Agustina Alfaro Román (my grandfathers’sister), and had Juan (“Puchoâ€), Mercedes, and “Chuncha†(believed to be Agustina).
He had an extramarital affair (but never was sure it was his) called Francisco ( “Panchoâ€). The mother’s name can’t remember.
MarÃa Juarbe Aldarondo married Antonio Ruiz, never had children.
My grandmother Justa Juarbe Aldarondo married Felipe Alfaro Román, and had Laura, Eufrasina, Teotista, Moisés, Enecunda, Segundo, Gustavina (my mother), Gloria.
Laura Alfaro Juarbe (living in Isabela) married Ramón Rosado Román, and had Saúl (deceased), Graciela (“Nanaâ€) (deceased), Laura (“Yuriâ€), Ramón (“Juniorâ€), MartÃn, Monserrate, Rebeca, Néstor (deceased).
Eufrasina Alfaro Juarbe (deceased) never married.
Teotista Alfaro Juarbe (living in S.J.) married Ramón Alfaro Amador, and had Edith (deceased), Carmen Luz, Ramón Antonio, Zaida.
Moisés Alfaro Juarbe never married.
Enecunda Alfaro Juarbe (living in Isabela) married Eduardo Calero Calero (son of Luis Calero and Luisa Calero), and had MarÃa Dolores. (Eduardo had a sister, Emilia Calero Calero).
Segundo Alfaro Juarbe (deceased) married Elsa Pérez, and had Segundo, Antonio (“Tonyâ€), Justa Antonia.
He divorced and married again in Camden, N.J., a woman named Lucy (Puerto Rican), and had Alex (lives in N.Y.)
Had a daughter from an extramarital affair in Camden, N.J. called Ana MarÃa, don’t know the mother’s name (Puerto Rican).
Divorced and married Aurora Tirado, and had Moisés.
Gustavina Alfaro Juarbe (living in Isabela) married Eligio Alfaro Román (first cousin), and had Aura Nivia (me!), and Justa.
Gloria Alfaro Juarbe (living in RÃo Piedras) married Calixto Aldarondo Galván, and had Milton, Alma, and Alida.
I can get also you info on the Aldarondos if you’re interested.