MoSU-L/Nat. Am. files (usage: John Greenleaf Whittier, J.G. Whittier)
WwW in Am. (Whittier, John Greenleaf, poet, abolitionist, b. Dec. 17, 1807; d. Sept. 7, 1892)
Wikipedia 6 October 2020: (John Greenleaf Whittier (December 17, 1807 – September 7, 1892) was an American Quaker poet and advocate of the abolition of slavery in the United States. He was born in Haverhill, Massachusetts to a poor farming family, and became known as a writer, poet and editor, and became an active abolitionist early in the 1830s. In 1840, he attended the World Anti-Slavery Convention in London. About 1845 his health failed, and he went home to Amesbury, remaining there, continuing to write poetry with a strong anti-slavery tone. He became one of the founding contributors to The Atlantic Monthly. He died at Amesbury, Massachusetts,) https://en.wikipedia.org/wiki/John_Greenleaf_Whittier