In the belly of hell’: The Quaker abolitionist disowned by his faith for condemning slave owners - The Washington Post:

Benjamin Lay, who had dwarfism, wrote one of the first treatises against slavery in America, denouncing Quaker slave owners as "man-stealers." ....
https://www.washingtonpost.com/news/retropolis/wp/2018/05/14/in-the-belly-of-hell-the-quaker-abolitionist-disowned-by-his-faith-for-condemning-slave-owners/