"White" for colorless glass has been used much more recently than that. It was common in ABP, for one. And Cathy was saying that her (Aussie) mum called colorless glass, white. That's pretty interesting about the green glass, though.
I don't know nuthin about Carnival glass, so I'm not surprised I didn't know that. "Clear" for colorless is probably used a lot more in the US than I'm conscious of, it's just that I was for so long into the Elegant glass thang, I got caught up in that terminology.