Question: John Shaffer Phipps was the director of a chemical conglomerate based in what city?
Context: John Shaffer Phipps (August 11, 1874 – May 12, 1958) was an American lawyer and businessman who was an heir to the Phipps family fortune and a shareholder of his father-in-law's Grace Shipping Lines.  He was a director of the Hanover Bank, U.S. Steel Corp. and W. R. Grace & Co. George Abraham Crawley (1864–1926) was a British artist, designer and purveyor of English taste.  He is best known for the design of John Shaffer Phipps' (the heir to a U.S. Steel Magnate fortune) home, Westbury House (built 1904–10; additions constructed in 1915–16), at Old Westbury Gardens, in Long Island, New York. Old Westbury Gardens is the former estate of John Shaffer Phipps (1874–1958), heir to a U.S. Steel fortune, in Nassau County, New York.  Located at 71 Old Westbury Road in Old Westbury, the property was converted into a museum home in 1959 and is open for tours April through October for a fee. W.R. Grace and Company is an American chemical conglomerate based in Columbia, Maryland.  Grace is divided into three business segments—Grace Catalysts Technologies, Grace Materials Technologies, and Grace Construction Products.  Grace is a specialty chemicals and materials company.  It has more than 6,700 employees in nearly 40 countries, and annual sales of more than US $ 2.5 billion.  The company's stock, listed in 1953, trades on the New York Stock Exchange. Thomas McCarthy (born 1940) is John Shaffer Professor of Philosophy Emeritus at Northwestern University.  Before joining Northwestern in 1985, he taught for four years at Munich University and for thirteen years at Boston University.  After retiring from Northwestern in 2006, he served for three years as William H. Orrick Visiting Professor at Yale University.  Over the course of his academic career, McCarthy's work was supported by grants and fellowships from the National Endowment for the Humanities, the Alexander von Humboldt Foundation, the American Council of Learned Societies, and the Guggenheim Foundation.  Early in his career he wrote and taught principally in the philosophy of logic and mathematics and then in the philosophy of the social sciences.  Subsequently, and for the bulk of his career, he worked in the general area of critical social and political theory, and in particular on the work of Jürgen Habermas, of which he is widely regarded as one of the foremost English-language interpreters.  During his last decade of teaching, McCarthy focused on theoretical issues in the history of racist and imperialist thought, and particularly on their interweaving in theories of progress and development. Vernon H. Vaughan (February 11, 1838 – December 4, 1878) was an American political leader.  Born in Mount Meigs, Alabama, he served as Utah territorial secretary to Governor John Shaffer, and after Shaffer's untimely death in office, President Ulysses S. Grant appointed Vaughan to fill the vacancy as acting governor.  He served a single uneventful year and was not reappointed. Mill House, also known as Chinn's Mill and Hatcher's Mill, is a historic grist mill complex located near Middleburg, Fauquier County, Virginia.  All of the buildings in the complex are constructed of stone laid in a random-rubble pattern and some are of mixed stone and frame construction.  They represent a late 18th- to early 19th-century rural Virginia grist mill operation, that was later transformed during the early-20th-century into a "hunt country" estate by John Shaffer Phipps.  In addition to the mill itself, the complex includes the miller's house, the cooper's house and shop, the mill owner's house, and what was likely a dairy/smokehouse. Bayer CropScience Limited is the Indian subsidiary of international chemical conglomerate Bayer AG.  Its head office is located in Hiranandani Estate, Thane district in Maharashtra, India.  Bayer CropScience Limited is a part of Bayer Group (India) and is the only public company of Bayer Group in India. Ayavalla Plantation was a quail hunting plantation located in northwest Leon County, Florida, established by John Henry Howard Phipps, son of John Shaffer Phipps of the prominent Phipps family. Atul Ltd is a chemical conglomerate and one of the companies of Lalbhai Group, serving customers in national and international markets.  The first manufacturing site of the Company - spread over 1250 acres in Gujarat, India - is an integrated chemical complex, having its registered office in Ahmedabad and head office at Valsad both in Gujarat, India.  The shares of Atul are listed both at National Stock Exchange and Bombay Stock Exchange.
Answer: Columbia, Maryland