Wendy Pfeffer 
Many Ways to Be a Soldier [PDF ebook] 

More than anything, Rem Goldin wants to fight the British in the American Revolution. His father and the other men of Sites Point, New Jersey, have all left town to join the fighting. But ten-year-old Rem is too young to go with the men. Disappointed, he climbs up Foxborough Hill to look out over the ocean. What is that murky shape he sees through the fog? Could it be a British warship? Can Rem find a way to save his town?