Walter was unmarried and still a minor when he and his new 
step-sister conceived a child. The exact details are sketchy
as the family does not want to speak about it. But his brother
Woodroe was forced to marry this step-sister to legitimize
the birth of Hazel. 

I am not a Berryhill and these are only the collected comments
from across the family put into a format that allows this
story to be displayed as a genealogical lineage chart.