I can't trace shit. My great-grandfather came to NY from Calabria under a different name because he was running from some shit in Italy.
Later, after he cleaned up his mess, the name he came under mysteriously disappeared and a bunch of Cavallaris mysteriously started running shit at South Street Seaport.
We go back, more or less, to about 1870.
But since my family INVENTED "out of wedlock", it is utterly impossible to verify anything before that on my mother's side.
On my dad's side, all evidence points to us being very, very untalented pirates out of Cornwall, who lasted JUST long enough to breed before getting their necks stretched. We've also been able to pin down 2 famous sheep thieves (WTF?), a whole family of boat wreckers, and a poisoner.
Totally not surprised you come from a long line of bastards.