I am doing some research myself on my families genealogy and came across your posting. I am a Manganiello from the Boston area. My great grandparents arrived at Ellis Island in the early 1900's. I cannot find any results on the website though. Caggiano was my grandmothers name. I believe they are originally from Naples. There actually is quite a few Manganiello's in my area. Three families in my small town. Although some have dropped the i (Manganello). I am not sure if any of this helps you. Let me know if you come across any Manganiello info.