I recently made my first visit to Kilmainham Gaol in Dublin. Famous for holding the 1916 Easter Rising leaders prior to their execution, on site.
The leaders were able to be identified, as when they were printing the Proclamation of the Irish Republic (Which proclaimed Ireland’s independence from the UK).
When this was being printed it had to be printed in two halves, and as they were discovered by the British, they only had time to destroy the top half, leaving the bottom half, which included all of signatories of the Proclamation.
A list of the men executed is shown below.