I bought surplus control valves in Houston from many different Gypsies. They all sounded like they were from NYC. They seemed often to be named after things you come by in everyday life, like George [dollar bill], Miller [champagne of beers], etc. To be fair, there were Costello's etc also.
They provided a needed service. They would get the valves from metal scrap yards (often Jewish owned) and also from Chemical Plants and Refineries. Back in the 80s and 90s, they would sell us carbon steel valves for $50 per inch, and stainless steel price was $75 per inch.
We would then remanufacture and guarantee those valves and sell them to the Plants for a little cheaper than a new valve would cost. Everybody benefitted, and only one time did we get broken into and valves stolen. These guys were basically honest businessmen in big new heavy duty stake-bed trucks. It wasn't just Gypsies that did this, we also dealt with those of native stock (black and white). Don't mean to sound crass, just trying to paint a picture.
I did see a Gypsy lady once with a bunch of kids scamming a cashier at Walgreens (distraction and petty theft of candy). The cashier thought they were Mexican, I let her think it. Romany is different from Spanish, but a young Anglo kid might not be able to tell.
The Gypsies spared no coin on big nice cakes I remember, we knew some Cake Shop Owners.
They did do some Palm Reading too, we visited one big nice house while doing a bigger deal, that had a big black hand on it.
I would like to find this book on the $1 rack.
Oddly, Maas is the author of In A Childs Name that I am very familiar with. I played junior high basketball with the killers brother, who was a hoosier (that's what we do..ball). Valerie Bertinelli played the Staten Island sister of his slain wife in the TV movie. That one hit close to home, tho the brother was much older than us and I didn’t know him. He was an immoral Dentist in Staten Island. The little brother was the best basketball player I ever played with, was unconscious from range. I heard the older brother played centerfield for IU. Apparently for real, he didn't have much conscience.
Also Maas wrote The Valachi Papers, and Valachi is mentioned a lot in a book I am reading called Act of Treason (J Edgar Hoover) by Mark North. North wants to lay the JFK disaster on the Mafia, more than I think is warranted.
Maas got around.