My grandmother had a brother named Juan. She was born in La Torre, which is part of Lares, Puerto Rico. Her name is Gregoria (90yrs. old). Her sisters are or were Irma, Georgina, Clara, Felicita, Aurea, Pura, and another brother named Ramon Cuevas. Her mother's last name was Pol; therefore my grandmother is Maria Gregoria Cuevas Pol. I just found out yesterday that her real first name is Maria, not Gregoria.
Maybe there's a connection. Keep in touch.