Good Evening Iris...
From what I can gather Bon is a german name which moved from Von to Bon in order to escape some sort of persecusion. My grandparents Modesto and Julia Bon came from Spain to PR and I believe are brothers of your grandfather. I believe I know Angel Luis from Carolina. He and his sons are the only other Bon's I know. Hope this helps. I also know my father had 4 girls before he had me. I regretfully do not know their names. Hope this helps...