@zina: I have never seen an inverse widow’s peak. You are not talking about male pattern baldness, are you?
Cowlicks, and thick, coarse, long-lasting peasant hair are dominant in my family – my grandparents came from cold schtels in Russia, Lithuania and the Ukraine. One stove to heat everything in winter; everyone slept next to it including the chickens. One grandpa was bald, everyone else had hair that you could drop a safe on from 3 stories up and not feel.
We have a pic of my mat. grandmother w. hair down to her hips; if she had belted it, she could have gone nude w/o anyone noticing.
My kids were born w. lots of hair; my son had a little circle of hair at birth that soon grew into his cowlick.
In 6th grade I had enough long hair to be chosen to play Mary in the Christmas play (w. my Jewish parents’ permission) and Alice-in-W’land at camp. So much for method acting.