Hello Allan: I have been searching for a number of years and belong to several lists including those in Wales. This question has been asked many times in the past and the answer has always been that a nurse child is an infant whose mother is not successful herself with suckling and hires another mother or relative who is already nursing another child. Sometimes mothers continue on using it as a source of income long after their own child has finished nursing. Even today, when a mother is having difficulty nursing or ill, other nursing mothers will supply milk until the childs mother is able to continue. Hope this helps Dianne Hamilton, Canada