All right, I am a quarter German from two great grandmothers. I don't know the specifics for one (though I could dig that up), but for the other, she was born to two immigrants from Germany, so she was full German. But she was born in the U.S.

Her daughter, my dad's mom, is dead. My dad is half German from that great grandmother and another great grandmother (who is now dead, I don't know that many of the specifics on her, as I said). The paperwork on everyone is accessible.

If I speak German fluently and study mechanical engineering in college (two relevant things I hear), what would be my chance of being able to claim German citizenship?