Understanding how pervasive physical environmental contaminants can influence human behavior is a priority. I have spent 19 years researching the influence of contaminants and challenging concepts which seem firmly set in place. This work was refused as it relied upon 'known' belief that the foundation document of 'The Jukes' was a eugenic's cornerstone. Using factual observations from Dugdale (1887) there can be found can match to what we now know as contaminants: Lead, disease, fetal alcohol syndrome, and drug addiction.