Mystery, A by John Greenleaf Whittier (1807 - 1892)

John Greenleaf Whittier was an American Quaker poet and advocate of the abolition of slavery in the United States. Frequently listed as one of the Fireside Poets, he was influenced by the Scottish poet Robert Burns. Whittier is remembered particularly for his anti-slavery writings as well as his book Snow-Bound. - Summary by Wikipedia