Journalist Isaac Fitzgerald’s new book, “American Rambler,” details his quest to walk Johnny Appleseed’s trail. The book reveals Johnny Appleseed’s trees were for hard cider, not the wholesome eating apples we know today. Fitzgerald’s journey concludes with reflections on his mother’s death in February 2024. The Johnny Appleseed Trail of North Central Massachusetts — named for John Chapman, the folk hero who spread apple orchards across the American frontier in the early 1800s — is not actually