My line goes from a Lorenzo Aiardo I who married a Josephine Longobardo, probably 1855 in Acerra.His daughter born about 15 years later, Pascualina, was my grandmother.There is enough room in those years for a number of siblings although I only heard mention of a brother Lawrence II who went to Chicago as well as a sister when they were in Italy.Based on common naming practices, Lorenzo would not have named his first son after himself, but instead after his father.So there's plenty of room for Antonio!
Pascualina had two daughters who survived, Raffaella and Santina (my mother).
On that side of the family in addition to the Aiardo's, there were Russo's and Nuzzo/Muzzos (who also went to Chicago).
Since my father's line came from Pomigliana d'Arca nearby to Acerra, I have Espositos in my family as well and I believe the Aiardo marriages I can find on other sites were to families which married into my father's extended families as well. My father told me, "You can't be 2,000 years in one place and not be related to everyone!"
Nancy (Annunziata) is a family name on that Aiardo side, as well as Giuseppe.
I am certain all the Airdo's, Aiardo's etc. are related. I find the name nowhere else and do not know the meaning.I believe Agliardi is another variant.
I can be reached directly at email@example.com and have more info and sources.