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

Context paragraphs:
Ronald Moon: Ronald T. Y. Moon (born September 4, 1940) was the Chief Justice of the Hawaii State Supreme Court in Honolulu, Hawaii.  He served his first term from 1993 to 2003, and his second term from 2003 until retiring in August 2010.  Moon studied at Coe College towards bachelor's degrees in psychology and sociology.  He went on to the University of Iowa College of Law, where he obtained his doctorate of jurisprudence.  He returned to Honolulu in 1965 and became law clerk to United States District Court Judge Martin Pence.  He served under Pence for a year.  In 1966, Moon joined the staff of the Prosecuting Attorney of Honolulu where he was deputy prosecutor until 1968.  He left public service to become a partner in the law firm Libkuman, Ventura, Moon and Ayabe where he stayed until 1982.  It was from the law firm that Governor George Ariyoshi appointed Moon to the Hawaii State Judiciary as a circuit court judge.  Governor John Waihee then elevated Moon to the office of Associate Justice of the Hawaii State Supreme Court in 1990.  In 1993, Moon was once again elevated to become chief justice.

Sheryl Gordon McCloud: Sheryl Gordon McCloud (born October 5, 1955) is an Associate Justice of the Washington Supreme Court.  She was elected to replace outgoing Associate Justice Tom Chambers on Seat 9 of the Washington Supreme Court, winning 55.24% of the vote and defeating former Associate Justice Richard B. Sanders.  She was appointed to her six-year term on January 1, 2013, by Christine Gregoire.  With her election, the Washington Supreme Court is now majority-female.

Oliver Wendell Holmes Jr.: Oliver Wendell Holmes Jr. ( ; March 8, 1841 – March 6, 1935) was an American jurist who served as an Associate Justice of the Supreme Court of the United States from 1902 to 1932, and as Acting Chief Justice of the United States from January–February 1930.  Noted for his long service, his concise and pithy opinions and his deference to the decisions of elected legislatures, he is one of the most widely cited United States Supreme Court justices in history, particularly for his "clear and present danger" opinion for a unanimous Court in the 1919 case of "Schenck v. United States", and is one of the most influential American common law judges, honored during his lifetime in Great Britain as well as the United States.  Holmes retired from the Court at the age of 90 years, making him the oldest Justice in the Supreme Court's history.  He also served as an Associate Justice and as Chief Justice on the Massachusetts Supreme Judicial Court, and was Weld Professor of Law at the Harvard Law School, of which he was an alumnus.

Reuben Atwater Chapman: Reuben Atwater Chapman (Sept. 20, 1801 Russel, Mass.–June 28, 1873 Fluelen, Switzerland) was an American attorney who served as chief justice of the Massachusetts Supreme Court from 1868 until his death in 1873.  As a youth he was employed as a store clerk in Blandford, Massachusetts when he was given the opportunity at the age of 19 to read law as a clerk in a law office.  Admitted to the bar, he successively practiced in Westfield, Monson, and Ware, before settling in Springfield, Mass., where he practiced in partnership with Whig politician George Ashmun as Chapman & Ashmun.  The firm became one of the most successful in the state and in 1860 Chapman was appointed an associate justice of the state supreme court, subsequently being elevated to chief justice in 1868.  He was a presidential elector for Lincoln in 1860, and served on the Harvard Board of Overseers.  He handled some legal matters for John Brown when Brown was in business in Springfield, and later, when Brown was imprisoned in Virginia facing hanging after the abortive Harper's Ferry raid, he wrote to Chapman asking him to either come himself or send legal assistance: "I have money in hand here to the amount of $250 [...] do not send an ultra abolitionist," which Chapman was unable to do at the time.  Chapman died in Switzerland in 1873.

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.

Associate Justice: Associate Justice or Associate Judge is the title for a member of a judicial panel who is not the Chief Justice in some jurisdictions.  The title "Associate Justice" is used for members of the Supreme Court of the United States and some state supreme courts, and for some other courts in Commonwealth countries, as well as for members of the Supreme Court of the Federated States of Micronesia, a former United States Trust Territory.  In other common law jurisdictions, the equivalent position is called "Puisne Justice".

Martin Villarama Jr.: Martin S. Villarama Jr. (born April 14, 1946) is a Filipino lawyer who served as Associate Justice of the Supreme Court of the Philippines from November 3, 2009 until January 16, 2016.  Prior to his appointment as Associate Justice of the Supreme Court he had served as Associate Justice of Court of Appeals since March 11, 1998.  He also served in the Regional Trial Court of Pasig as Judge from 1986 to 1998 and as its Executive Judge from 1992 to 1996.

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.

Jesse F. Carter: Jesse F. Carter was an associate justice on the South Carolina Supreme Court.  He was born to Miles McMillan Carter and Janie Kinard Carter.  After local education for grade school, he attended Peabody College in Nashville, Tennessee, graduating in 1900.  He periodically worked as a teacher between periods of study.  He received his law degree from the University of South Carolina in 1905.  He married Lydia Jenkins on October 3, 1911, in Barnwell County.  He was active in the Democratic party and served as the chairman of its executive committee for eleven years.  In 1925, he was elected to the South Carolina Senate from Bamberg County.  He was elected an associate justice of the South Carolina Supreme Court in 1927 and served until his death on November 5, 1943.

Frank I. Osborne: Francis "Frank" Irwin Osborne (1853–1920) was the Attorney General of North Carolina from 1893 to 1896.  Osborne was born in Charlotte, North Carolina and attended the University of Virginia before reading law for 2 years in the offices of Richmond Mumford Pearson, Chief Justice of the North Carolina Supreme Court.  Osborne was admitted to the North Carolina Bar in 1875.  At age 25, he was elected mayor of Charlotte, North Carolina and served in the office from 1879-1880.  He was elected Attorney General of North Carolina in 1893, but, defeated for reelection to the same office in 1896.  Osborne served a term as a state senator from Mecklenburg County, North Carolina in the North Carolina General Assembly from 1898-1899.  He served on 9 standing Senate Committees.  After 1899, Osborne resumed his legal practice at the law firm of Osborne, Maxwell & Kearn.  Though, himself, a Democrat, in 1901 Osborne defended both North Carolina Supreme Court Chief Justice David M. Furches and North Carolina Supreme Court Associate Justice Robert Martin Douglas during their impeachment hearings.  Osborne was of the opinion that the Republican judges’ impeachments were unwarranted and an attempted political purge.  Osborne’s brilliant speech before the North Carolina General Assembly in closing defense of the justices caused both to be acquitted.  As reward for his successful defense of the justices, Theodore Roosevelt in the same year appointed Osborne an associate justice of the United States Court of Private Land Claims.

Supporting paragraphs: John F. Duffy Antonin Scalia
Answer: Gregory