<human>: I'll try and be brief.

So my great-grandfather came over from Italy in 1932. He got jobs digging graves and shoveling coal into a furnace for some green houses at a farm. Meanwhile, he started his own construction crew and began sending work visas back to his town in Italy. Two cool parts. The first, when the graveyard he worked at filled up, they had to move. That meant moving all of the graves and getting new headstones. Well, the graveyard had to get rid of the stones, so my great-grandfather offered to take them off their hands for free (quarries charge for that kind of stuff). At the same time, the farmers that owned the green houses were selling their land off for residential use. He bought a plot at a cheap rate thanks to their friendship and used the free headstones to build a house. It's the same house my dad grew up in, with the unmarked side of headstones lining the front wall. Second, the work visas that my great-grandfather sent back are responsible for five other families being in America. Coincidentally, all those families stayed in the same area, and ended up with descendants in my high school graduating class. 80 years after my great-grandfather came to America, five other families have kids in college thanks to his hard work.

Provide a brief overview of the text.
<bot>: My great-grandfather built his house out of grave stones and is responsible for a generation of kids of Italian-heritage having great lives here.