LOL You guys are mean! Actually, when I think about it, I come from a family that is quite old, and in which there is only one Gen X'er on either side in the immediate family (without invoking removed cousins and so forth). I had a great-grandfather who lived to be 101, and who died in the early 90's. Which is crazy, because my grandfathers didn't make it into the 21st Century and died only a few years later.
My parents, along with my immediate cousins (except the one that is in fact, the Gen X'er) all have Baby Boomer parents (my dad is 61). Only an aunt of mine had a child young, making her my cousin, and her children are the grandchildren of my aunt!
But my grandparents are/were all Greatest Generation, born around 1917.