Hello, history sleuths! We're writing to you from the Society of Unsung Heroes, and it appears that we have a potential case in BOSTON. It has come to our attention that there is a persistent mystery surrounding the signal lantern holders on the night of Paul Revere's ride on April 18, 1775. We may have an Unsung Hero here. 

If you're reading this, we suspect you're somewhat familiar with OLD NORTH CHURCH. Will you help us investigate?