Johnny Tremain by Esther Forbes
The Keeping Room by Anna Myers
My Brother Sam is Dead by Christopher Collier and James Lincoln Collier
The Fighting Ground by Avi
The Secret of Sarah Revere and Or Give Me Death by Ann Rinaldi
Please see the bibliography of Give Me Liberty for an extensive list of recommended nonfiction books and 18th century journals for young people and adults. The following two books have come out since publication and are very good:
George vs. George: The American Revolution as seen from Both Sides by Rosalyn Schanzer and
Liberty or Death The Surprising Story of Runaway Slaves who Sided with the British during the American Revolution by Margaret Whitman Blair.