RUFINO IBARRONDO 17/NOV/1885--SEPT./63 SSN# 581-18-6016 WAS BORN IN SAN SEBASTIAN, PR AND HIS PARENTS WERE JUAN DE DIOS IBARRONDO Y CECILIA LOPEZ . SO THIS RUFINO WAS BROTHER OF DONATO AND BERNARDO IBARRONDO, SO JUAN DE DIOS IBARRONDO WAS THE FATHER OF DONATO AND BERNARDO IBARRONDO. BERNARDO DIED AT AGE 104. I HAVE COME TO THIS CONCLUSION AFTER INVESTIGATING IN THE SOCIAL SEGURITY DEATH INDEX, SO FINALLY I KNOW WHOW MY GREAT-GREAT GRANDPARENTS WERE.