Background
He was born in Danbury, Connecticut (other sources say that he was a native of Wales and came to the Thirteen Colonies around 1772), the son of John Cornwall.
He was born in Danbury, Connecticut (other sources say that he was a native of Wales and came to the Thirteen Colonies around 1772), the son of John Cornwall.
He represented Suffolk and Essex in the Legislative Assembly of Upper Canada from 1797 to 1800. Cornwall served with Butler"s Rangers during the American Revolution. In 1797, he was named a justice of the peace for the Western District.
He lived in Colchester Township.