My great-grandmother, Hedwig Nietzsche Koerth, never spoke English. My Grandpa Gustav didn't learn the language until he entered first grade. But, by the time I was in grade school — and was going through a brief fling of learning German — Grandpa no longer remembered much of what had once been his first language. Today, nobody in my immediate family speaks any German, much less the dying dialect of Texas German that my great-grandmother spoke. The BBC has an interesting story about the history and linguistics of Texas German, which will probably die out in the next couple generations — largely because the German Germans started a couple world wars in a row and changed the idea of what was and wasn't socially acceptable speech in America.