Cravath, Swaine & Moore LLP (known as Cravath) is an American white-shoe law firm with its headquarters in New York City, and additional offices in London and Washington, D.C. The firm is known for its complex and high profile litigation and mergers & acquisitions work. History In 1854, former college classmates William H. Seward (later Abraham Lincoln's Secretary of State) and Richard M. Blatchford merged their respective law firms, forming Blatchford, Seward & Griswold. Blatchford served in the New York State Assembly, and as U.S. Minister to the State of the Church. His son, Samuel, also a partner at the firm, served as a federal district court and appeals court judge, was appointed to the United States Supreme Court, in 1882, by President Chester Arthur, serving for 11 years until his death; he was the first person to serve at all three levels of the judiciary. Seward served as both Governor and Senator from New York, supported the 1865 passing of the Thirteenth Amendment, and negotiated the 1867 purchase of Alaska from Russia in a transaction that his opponents derisively called "Seward's Folly" and "Seward's Icebox", though since noted as a "bargain Basement deal" that was the principal positive accomplishment of the Andrew Johnson presidency. Paul Drennan Cravath joined the firm in 1899, and devised the "Cravath System", combining a distinct method of hiring, training, and compensating lawyers. His name was added to the firm name in 1901 and, in 1944, after a series of name changes, the Cravath, Swaine & Moore name was established and has not been altered since. Cravath has represented noted American inventors Samuel F.B. Morse, in the late 1840s; Cyrus McCormick, Elias Howe, and Charles Goodyear in the 1850s; and George Westinghouse in the 1880s. Some current client relationships that began in the 1800s are with CBS, JPMorgan, and PricewaterhouseCoopers. The firm has had a long record of clients in the US railroad industry beginning with the New York & Erie and Union Pacific railroads, and express delivery businesses such as Adams, Southern, and Wells Fargo. Its 19th century history includes the 1808 insanity defense of William Freeman for the murder of John G. Van Nest, the 1848 Jones v. Van Zandt challenge to the constitutionality of slavery, and the Pollock v. Farmers' Loan and Trust Company tax case of 1895. Cases of mention before the Supreme, appellate and Chancery courts in more recent decades