Did A "Field of Human Excrement" By The White House Kill A President?

If you remember President William Henry Harrison from U.S. history class at all, then you probably remember him as the poor fellow who died from pneumonia a month after delivering his inaugural address in freezing rain. Except was it really pneumonia after all? A New York Times article suggests a different theory, and a cautionary tale against giving long speeches instead turns into one against improper sewage systems.