I would imagine that American/Canadian Amish German are worth a similiar study, if it hasn't been done already.

I rode the bus once with two Amish who spoke German but were reading English (The Reader's Digest). According to one of my friends, the Amish are the only farmers who can make it any more. They do so by never using credit, minimizing the use of fuels and chemicals, working long hard hours, and extreme frugality (e.g., not buying shoes for their kids unless necessary.)

Cool book! I went to a very Germanic-type place in Brazil: Blumenau. What was weird was the amount of wealth and comfort there, which isn't common in Brazil. Which made me wonder...

alemão is Brazilian slang for a blond guy. And people really do seem to assume that you are German, or a Brazilian of German extraction, even when your other features would say Irish-American back in New York or Boston.