What's the upper age-limit for going gray?

Ronald Reagan. Jet black and every one knew it wasn’t touched up.

My grandmother’s hair was still black when she died at the age of 92. My father’s hair was mostly black when he died at age 80.

I have some cites!

My Mum in her 60s

My big brother at 55

We grey at the temples, and as big bro demonstrates, the beard. None of my cousins are grey yet either – thanks for the genes Nana! I do dye mine, I always have and I’m not going to stop now now a bit of grey is creeping in.

I’m 67 and have no grey at all, not a single hair.

I do not dye it before you ask and I’m not bald.