Dr. Cadwalader was one of the first to inoculate patients against smallpox He was a founder and director of the Library Company of Philadelphia and a member of the American Philosophical Society .
He was one of the founders of the Pennsylvania Hospital in 1751 .
one one was one of the first to inoculate patients against smallpox one was a one and director of the Library Company of Philadelphia and a member of the American Philosophical Society .
He was one of the founders of the Pennsylvania Hospital in 1751 .