Yes i knew mine.
Im 56, my dad and mum are 84 (dad has just passed away)...I knew my grandparents, on mums side Peggy and Johnny, both hard strong solid Northumbrians. Johnny passed away perhaps in the 1980s at a good age, he was a lovely man, I can hear his voice now like it was yesterday. Peggy passed about 10 years ago, she must have been in her 90s and was still very formidable.
On dads side...I dont remember his mums name...she died maybe in the 1970s or 80s at the latest. We rarely met, they were hundreds of miles away.
Dads dad was Alfred, born in 1898, fought in WW1, was a master carpenter, head of works in Bristol docks for many years in charge of hundreds of men, very Victorian in his manner and outlook. He passed in 1992 . We rarely ever saw them, as kids we were always on the move with dad in the RAF.