Why does Ellen favor jethro over her other children in arcoss five Aprils?

Ellen favors Jethro over her other children in "Across Five Aprils" because she sees him as her youngest and most vulnerable child, especially during the turbulent times of the Civil War. Jethro also takes an interest in learning and understanding the events around him, which creates a strong bond between him and his mother. Additionally, Jethro's gentle nature and willingness to help others make him more endearing to Ellen.