A historian has been studying a lesser-known figure from the Revolutionary War era. Jane Calvert has spent 25 years researching John Dickinson, a lawyer and statesman. He is often remembered for not signing the Declaration of Independence.

Details about Calvert's mission and Dickinson's legacy are available from the source. The story of Dickinson's missing signature and its impact on his legacy is being explored.

Further information about John Dickinson and Jane Calvert's research can be found through the provided news source.