Did you know that one of the tools of the suffragette movement were postcards. With 3 to 4 postal deliveries a day they were the safest and quickest form of underground communication.
Well a boxful of postcards and other papers belonging to the suffragette Mary Gawthorpe has just come to light in the Tamiment Library in New York.
The historian Dr Krista Cowman was the first to be allowed access to the archive and she came across a letter from Emily Wilding Davison, the suffragette who threw herself under the King's horse, to the Newcastle Daily News 9 October 1912 in support of Mary's call for a general hungerstrike.
Kirsta Cowman joins Martha to tell her more.