Question: Who was an early English-American industrialist known as the "Father of the American Industrial Revolution", who's youngest brother was an early American industrialist, founder of Slatersville, Rhode Island?

John Slater (December 25, 1776–1843) was an early American industrialist, founder of Slatersville, Rhode Island and younger brother of Samuel Slater, father of the American Industrial Revolution, and a member of the well-known Slater family. <SEP> The Slater family is an American philanthropic, political, and manufacturing family from England, Rhode Island, Massachusetts, and Connecticut whose members include the "Father of the American Industrial Revolution," Samuel Slater, a prominent textile tycoon who founded America's first textile mill, Slater Mill (1790), and with his brother John Slater founded Slatersville, Rhode Island in North Smithfield, Rhode Island in 1803, America's first planned mill village.  The family includes various merchants, inventors, art patrons, and socialites.  John Fox Slater, was a prominent abolitionist who founded the Slater Fund and built the historic John F. Slater House and Slater Library.  William A. Slater was a noted art collector and philanthropist who created the Slater Memorial Museum in Connecticut.  After moving many of their mills to the South from New England, the village of Slater-Marietta, South Carolina was named after the family. <SEP> Samuel Slater (June 9, 1768 – April 21, 1835) was an early English-American industrialist known as the "Father of the American Industrial Revolution" (a phrase coined by Andrew Jackson) and the "Father of the American Factory System."  In the UK, he was called "Slater the Traitor" because he brought British textile technology to America, modifying it for United States use.  He learned textile machinery as an apprentice to a pioneer in the British industry, then immigrating to the United States at the age of 21.  He designed the first textile mills in the US and later went into business for himself, developing a family business with his sons.  A wealthy man, he eventually owned thirteen spinning mills and had developed tenant farms and company towns around his textile mills, such as Slatersville, Rhode Island. <SEP> Stephen Northup (roughly 1630 – after 1687) was an early settler of the Colony of Rhode Island and Providence Plantations, and built what may be the oldest house still standing in Rhode Island.  Northup was a fairly early settler of Providence in the Rhode Island colony, but accounts claiming that he settled the area with Roger Williams are inaccurate, since Northup was an infant or child when Williams first came to Providence in the spring of 1636.  Northup lived in Providence from 1655 to 1666, after which he moved to the Narragansett country (what is now North Kingstown, Rhode Island), which land was claimed by both the Rhode Island and Connecticut colonies.  He may have owned or operated a grist mill, and is credited with building a house that still stands and is used as a private residence.  Northup was married, had six known children, and lived until at least 1687, when he was taxed.  He was the great grandfather of Capt. Henry Northup who left Rhode Island to settle in Hoosick, New York, and took his slave Mintus who was manumitted in 1797.  Mintus assumed the surname Northup, and had a free-born son, Solomon Northup, the subject of the Academy Award winning film 12 Years a Slave.