[영문]Uncovering old or historical family secrets has become an enjoyable pastime yet in contemporary families the keeping of secrets, especially those relating to reproduction and paternity, is seen increasingly as undesirable. This article explores these issues and the growing tendency for family law and policy to favour exposing genetic truths ? seeing this form of scientific veracity as crucial to child welfare and equality. The article explores the changing contexts of family secrets (using data drawn from the Mass Observation Archive) and seeks to locate these secrets in their cultural and historical context. An argument against imposing a simple solution (in the form of genetic truth) onto complex relationships is pursued.