As for my mother's side of the family, I have very fond memories of my great-grandma. She had the funnest personality, and would always be playing tricks on people.
I remember one time, my family and I went to dinner at a posh restaurant. My great-grandma and my dad were fooling around, laughing and joking with each other. My great-grandma ended up knocking my father off of his chair, and he fell onto the floor in the middle of the restaurant. They, of course, were laughing hysterically, my grandfather however, was very embarrassed.
Here's a photo of my great-grandma & my dad !