Question: What is the middle name of the Associate Justice of the Supreme Court who John F. Duffy served as clerk?

full_context: Document 1: William T. Dzurilla: William T. Dzurilla, formerly William T. D'Zurilla, is an attorney, a partner in the Boies, Schiller & Flexner law firm's Fort Lauderdale, Florida office. He was a law clerk for Justice Byron White of the United States Supreme Court from 1982 to 1983. He played a key role in the privatization of major state-owned businesses in Slovakia.
Document 2: Merrick Garland Supreme Court nomination: Following the February 2016 death of Associate Justice of the Supreme Court Antonin Scalia, President Barack Obama nominated Merrick Garland to fill Scalia's seat on the Supreme Court on March 16, 2016. At the time of his nomination, Garland was the Chief Judge of the United States Court of Appeals for the District of Columbia Circuit. Scalia's death led to an unusual situation in which a Democratic president had the opportunity to appoint a Supreme Court nominee while the Republicans controlled the United States Senate; before Scalia's death, such a situation last occurred when a Senate Republican majority confirmed Grover Cleveland's nomination of Rufus Wheeler Peckham in 1895. Conversely, in February 1988, during an election year, the Democratic-controlled Senate confirmed Anthony Kennedy, who was the Republican President Ronald Reagan's nominee for the Supreme Court, though Kennedy had been nominated in November 1987, and the vacancy had occurred in June 1987.
Document 3: Ruth Bader Ginsburg: Ruth Bader Ginsburg (born Joan Ruth Bader; March 15, 1933) is an Associate Justice of the Supreme Court of the United States. Ginsburg was appointed by President Bill Clinton and took the oath of office on August 10, 1993. She is the second female justice to be confirmed to the Court (after Sandra Day O'Connor), and one of four female justices to be confirmed (with Sonia Sotomayor and Elena Kagan, who are still serving). Following Justice O'Connor's retirement, and prior to Justice Sotomayor joining the Court, Ginsburg was the only female justice on the Supreme Court. During that time, Ginsburg became more forceful with her dissents, noted by legal observers and in popular culture. She is generally viewed as belonging to the liberal wing of the Court. Notable majority opinions Ginsburg has authored include "United States v. Virginia, Olmstead v. L.C.," and "Friends of the Earth Inc. v. Laidlaw Environmental Services, Inc."
Document 4: Antonin Scalia: Antonin Gregory Scalia ( ; March 11, 1936 – February 13, 2016) was an Associate Justice of the Supreme Court of the United States from 1986 until his death in 2016. Appointed to the Court by President Ronald Reagan in 1986, Scalia was described as the intellectual anchor for the originalist and textualist position in the Court's conservative wing.
Document 5: David Skover: David Michael Skover is the Fredric C. Tausend Professor of Law at the Seattle University School of Law. He teaches, writes, and lectures in the fields of federal constitutional law, federal courts, free speech & the internet, and mass communications theory. He is also a regionally acclaimed opera and musical theater singer. David graduated from the Woodrow Wilson School of International and Domestic Affairs at Princeton University. He received his law degree from Yale Law School, where he was an editor of the Yale Law Journal. Thereafter, he served as a law clerk for federal judge Jon O. Newman of the U.S. Court of Appeals for the Second Circuit.
Document 6: Evan L. Schwab: Evan L. Schwab is an American attorney who served as law clerk to Justice William O. Douglas of the Supreme Court of the United States during the 1963 Term.
Document 7: Ronald Reagan Supreme Court candidates: Speculation abounded over potential nominations to the Supreme Court of the United States by Ronald Reagan even before his presidency officially began, due to the advanced ages of several justices, and Reagan's own highlighting of Supreme Court nominations as a campaign issue. Reagan had promised "to appoint only those opposed to abortion and the 'judicial activism' of the Warren and Burger Courts". Conversely, some opposed to Reagan argued that he could "appoint as many as five Justices" and would "use the opportunity to stack the Court against women, minorities and social justice".
Document 8: John J. Duffy, Jr.: John J. Duffy Jr. (born February 3, 1933) is an American criminal defense trial attorney.
Document 9: David Souter: David Hackett Souter ( ; born September 17, 1939) is a retired Associate Justice of the Supreme Court of the United States. He served from October 1990 until his retirement in June 2009. Appointed by President George H. W. Bush to fill the seat vacated by William J. Brennan, Jr., Souter sat on both the Rehnquist and Roberts courts and came to vote reliably with the court's liberal members.
Document 10: Neil Gorsuch Supreme Court nomination: After his nomination on January 31, 2017, Neil Gorsuch was confirmed by the Senate on April 7, 2017. Gorsuch, age 49, is the youngest sitting Supreme Court justice since Clarence Thomas. In February 2016, U.S. Supreme Court Associate Justice Antonin Scalia died, leaving a vacancy on the highest federal court in the United States. Article II of the U.S. Constitution requires the president to nominate justices to the Supreme Court, subject to the "advice and consent" of the United States Senate. President Barack Obama, a Democrat, nominated Merrick Garland to fill the vacancy. U.S. Senate majority leader Mitch McConnell, a Republican, arguing that the presidential election cycle having already commenced made the appointment of the next justice a political issue to be decided by voters, refused to bring the Garland nomination to the Senate floor for a vote. McConnell's action held the Supreme Court vacancy open through the end of President Obama's tenure.
Document 11: John F. Manning: John F. Manning (born 1961) is the Dean of Harvard Law School, a prominent American legal academic and the Morgan and Hellen Chu Professor of Law at Harvard Law School. He graduated from Harvard College in 1982 and from Harvard Law School in 1985. Following law school, he served as a law clerk to Judge Robert H. Bork at the United States Court of Appeals for the District of Columbia Circuit. He then served as law clerk to Justice Antonin Scalia for the Supreme Court's 1988 term.
Document 12: H. Jefferson Powell: Haywood Jefferson Powell (born April 25, 1954) is a law professor at Duke University. Before his return to Duke, he served in the Office of Legal Council at the United States Justice Department in Washington, D.C. Before this second tenure in the Justice Department, Powell was the Lyle T. Alverson Professor of Law at The George Washington University in Washington, D.C., a post which he accepted in 2010. Before joining The George Washington University Law Faculty, Powell had been a professor of Law at Duke University since 1987. In 1999 the Duke Bar Association presented Powell with the "Excellence in Small Section Teaching" Award, and in the academic year 2001–2002, he was Duke University's "Scholar/Teacher of the year". More recently, he has been named Frederic Cleaveland Professor of Law and Divinity. Powell is currently the Samuel Rubin Visiting Professor of Law at Columbia Law School, where he teaches constitutional law.
Document 13: John F. Duffy: John Fitzgerald Duffy (born November 22, 1963) is Professor of Law at University of Virginia School of Law in Charlottesville, Virginia. He is a Legal Commentator and Author who has written numerous articles and co-authored a scholarly book on Patent Law (listed at his University of Virginia faculty webpage below). He previously served as law clerk to Antonin Scalia, Associate Justice of the Supreme Court of the United States, and Stephen F. Williams, Judge of the United States Court of Appeals for the District of Columbia Circuit. Between these two assignments, he served as an attorney at the Office of Legal Counsel in the United States Department of Justice. In addition to clerking for Justice Scalia, John Duffy has been very influential in regard to constitutional law and the appointment of federal judges.
Document 14: Rehnquist Court: The Rehnquist Court refers to the Supreme Court of the United States from 1986 to 2005, when William Rehnquist served as Chief Justice of the United States. Rehnquist succeeded Warren Burger as Chief Justice after the latter's retirement, and Rehnquist served as Chief Justice until his death in 2005, at which point John Roberts was nominated and confirmed as Rehnquist's replacement. The Rehnquist Court is generally considered to be more conservative than the preceding Burger Court and Warren Court. According to Jeffrey Rosen, Rehnquist combined an amiable nature with great organizational skill, and he "led a Court that put the brakes on some of the excesses of the Earl Warren era while keeping pace with the sentiments of a majority of the country." Biographer John Jenkins argued that Rehnquist politicized the Supreme Court and moved the court and the country to the right. Through its rulings, the Rehnquist Court often promoted a policy of New Federalism in which more power was given to the states at the expense of the federal government. The Rehnquist Court was also notable for its stability, as the same nine justices served together from 1994 to 2005, the longest such stretch in Supreme Court history.
Document 15: Samuel Alito: Samuel Anthony Alito Jr. ( ; born April 1, 1950) is an Associate Justice of the Supreme Court of the United States. He was nominated by President George W. Bush and has served on the court since January 31, 2006.
ground_truth: Gregory