Lefty here, like all the males on my father's side of the family...although I do write right-handed as I was ambidextrous and the kindergarten teacher forced me to use my right hand - I used to switch hands halfway across the paper...
I'll have to tell my 2 DDs. They are both lefties. The only other person on either side of the family that was left handed is my Dad. My little one never got to meet him but he sure did enjoy teaching my oldest how to tie her shoes and other things in that special lefty way. I know he would have enjoyed doing that with my little one too.