JoAnn
My 3xG grandfather was Andrew Francis SIRKO born c.1801 in Shadwell, London. His father, Andrew Francis SIRKO [senior] was a mariner but I know nothing else about him. It was suggested to me some time ago that he may have been from Sicily [although the spelling would have changed].
Andrew Francis junior's daughter married John MANGUECAVALLI born in Italy c.1799. His father was Guiseppe MANGIACAVALLI.
Most, if not all, the CIRCOs I have found on the Ellis Island website appear to have originated from Sicily, many from Lentini/Carlentini or Casteltermini. The closest match on the MANGIACAVALLI name that I can find on the Ellis Island website is MANGIACAVALLO and most of these originated from Ribera, Sicily.
Do you have any information about the CIRCO family in Sicily pre-1800, please? I live in England and do not speak Italian [nor Latin] so I am finding this area of research somewhat challenging and any pointers would be appreciated!
Sue