Who Was William Donner, the Man?

Most people know Donner, if they know him at all, as the founder of Donora, a town with a name unlike any other in the world. They might know that Donner was connected to the Mellons —Andrew W. and Richard B. — and that he was instrumental in creating the zinc and steel mills in Donora at the turn of the 20th Century. They might not know much else.