Take a look for yourself...
My mum is on the left, obviously I'm the one in the cap and gown...Dad is behind us in the blue and white, but that was after he lost a lot of weight from chemo. He was never a really BIG guy but he was definitely not a twig or anything. Lady in the wheelchair is his mom, my grandma (turning 94 this year). Tall guy in the back is my dad's brother, lady in pink is dad's sister. The two on the right being their spouses to whom I am not genetically related.
I always knew my mum was big, but apparently she used to be
smaller. I never thought of my dad as fat when I was young so I don't really know...it could've just been that I thought he was superman. I seem to recall people saying he was a large boy when he was young though. My sister and I could be twins even though she is 6 years older. We are the same height and the same weight.
As for my extended family I feel like they're all pretty...normal. Not skinny but not anything I'd call fat, either.