Did Your Grandparents Know Their Grandparents?

When I realized that my Mom only knew one of her grandparents, it got me curious about the grandparent connections in my family.

My Dad(born 1930) didn't know either of his grandmothers.  Both died around 1920-one from tuberculosis and the other from pneumonia. He did know his grandfathers.  His maternal grandfather, James Jakes, stayed with them some before he died in 1941.  His paternal grandfather died when Dad was 14 years old.

My Mom only knew her paternal grandfather, David E. Luna who lived with them a few years before he died in 1948.  Mom was 8 yrs old 

If I take it back a generation further my question becomes "Did my grandparents know their own grandparents? Below is a breakdown of each grandparent and the grandparents they knew.  

My Paternal Grandfather: Thomas D. Cooke(1888-1971)
Paternal Grandparents: Wm C. & Elizabeth Putman Cook (Died before his birth)
Maternal Grandparents: Wm B. & Eliza Manire King (Moved to Texas, died there)

My Paternal Grandmother: Pearl Gray Jakes Cooke(1891-1993)
Paternal Grandparents: Did not know any (All died before her birth)
Maternal Grandparents: Did not know any (All died before her birth)

My Maternal Grandfather: Wm R. Luna(1892-1994)
Paternal Grandparents: Elisha Luna (Died before his birth) and Kizzy Rigsby Luna(paternal grandmother) died when Will was about 17 years old.
Maternal Grandparents: David Pittman (Lived until Wm R. Luna was about 30) Mary Adcock Pittman died when Will was about 10 years old.

My Maternal Grandmother: Minnie Acuff Luna(1899-1957)
Paternal Grandparents: Knew Sarah McElroy Acuff (Paternal Grandmother); Paternal Grandfather died before her birth.
Maternal Grandparents: Knew Wm P. Hale (Maternal Grandfather); Maternal Grandmother died before her birth.