Books with title Saddle, Stars and Stripes: On the Edge of Revolution

Eliza Carter loves working for her father during the summer holidays. She drives her own team of horses, led by her special Conestoga horse, Clipper, hauling heavy wagons full of grain. But life changes dramatically when tensions in the new colony begin to rise and her twin brother joins local farmers in armed resistance against their British rulers. Suddenly she finds herself examining her beliefs and loyalties. Where will she stand when national resentment boils over into revolution? And will she come to her brother's rescue when he needs her?