Members of my ancestral line carry a trait that causes hypopigmentation anomalies of the hair and skin. It is thought that the trait comes through a German family line, Hoffman or Reiter or some other connecting line with those. It is passed from parent to child, does not skip generations nor can be passed by someone who does not exhibit the trait. I have read this is sometimes (rightly or wrongly) termed Waardenburg syndrome. I am trying to trace the source of this genetic anomaly.
The photo attached shows one family with three members exhibiting the trait - the mother, standing, the child standing on the left (note light hair, which was brown on the back and sides) and the child center front.