not american but i met five of mine (the other three died before i was born, including the parents of my maternal grandfather. that's on him btw he was 40 when my mum was born.)
alistair pomegranate 'lappy' percival
From @today.yougov.com, 54% of Americans (including me) never met any of their great-grandparents, and another 13% did but don't remember it. 31% say they have met a great-grandparent and remember it: yougov.com/en-us/daily-...