Hester on the Run #1, in the Hester's Hunt for Home series, by Linda Byler
Young Amish couple Hans and Kat Zug find a Lenape Native American infant wrapped in deerskin left by a spring. They name her Hester and raise her Amish. Once grown she realizes she belongs to two traditions. When it divides her family, she decides to leave the only home she has known with her Amish memories and an ancient book of Native remedies.