Question: F. William McCalpin was named Chair twice of what?

Context paragraphs:
Marc Jordan: Marc Wallace Jordan (born 1948), is an American-born Canadian singer-songwriter, record producer, session musician, and actor.  Covering a wide variety of genres, he has written songs for a number of well-known artists, including Diana Ross, Rod Stewart, Cher, Bette Midler, Chicago, and Josh Groban.  He was named best producer with Steven MacKinnon at the Juno Awards in 1994 for "Waiting for a Miracle" from "Reckless Valentine".  In early 2014, Marc Jordan was named Chair of Slaight Family Music Lab at Norman Jewison's Canadian Film Centre, and will continue in that role into 2016.

A Lesson Before Dying: A Lesson Before Dying Is Ernest J. Gaines' eighth novel, published in 1993.  While it is a fictional work, it is loosely based on the true story of Willie Francis, a young Black man sentenced to death by the electric chair twice in Louisiana, in 1945 and 1947.

William J. Poorvu: William J. Poorvu is the MBA Class of 1961 Adjunct Professor in Entrepreneurship, Emeritus at Harvard Business School.  "An expert in real estate, Poorvu helped define the real estate course offerings at HBS for 35 years.  He was the school's first adjunct professor starting in 1981, its first adjunct professor with a named chair, and the first non-tenured professor at Harvard University to be given emeritus status.  He was a member of the active HBS faculty from 1973 until 2002."

Steven Sametz: Steven Sametz (born 1954, Westport, Connecticut) is active as both conductor and composer.  He has been hailed as "one of the most respected choral composers in America."  Since 1979, he has been on the faculty of Lehigh University in Bethlehem, Pennsylvania, where he holds the Ronald J. Ulrich Chair in Music and is Director of Choral Activities and is founding director of the Lehigh University Choral Union.  Since 1998, he has served as Artistic Director of the professional "a cappella" ensemble, The Princeton Singers.  He is also the founding director of the Lehigh University Summer Choral Composers’ Forum.  In 2012, he was named Chair of the American Choral Directors Association Composition Advisory Committee.

Michael Ledeen: Michael Arthur Ledeen (born August 1, 1941) is an American historian, neoconservative foreign policy analyst, and author with a PhD in philosophy.  He is a former consultant to the United States National Security Council, the United States Department of State, and the United States Department of Defense.  He held the Freedom Scholar chair at the American Enterprise Institute where he was a scholar for twenty years and now holds the similarly named chair at the Foundation for Defense of Democracies.

Sir Samuel Hall Chair of Chemistry: The Sir Samuel Hall Chair of Chemistry is the named Chair of Chemistry in the School of Chemistry at the University of Manchester, established through an endowment of £36,000 in 1913 by the Hall family.  Chairs have included the following chemists:

Legal Services Corporation: The Legal Services Corporation (LSC) is a publicly funded, 501(c)(3) non-profit corporation established by the United States Congress.  It seeks to ensure equal access to justice under the law for all Americans by providing funding for civil legal aid to those who otherwise would be unable to afford it.  The LSC was created in 1974 with bipartisan congressional sponsorship and the support of the Nixon administration, and is funded through the congressional appropriations process.

John D. Martin (author): John D. Martin (born 1945) is an American finance and business professor and author currently holding the Carr P. Collins Chair of Finance at Baylor University, and is also a published author, currently in 3,568 libraries, having his highest collected book at 640 libraries worldwide.  Another notable named chair position he has held was the First Republic Bank Centennial Professor of Business Administration and subsequently also the Eugene McDermott Centennial Professor of Banking and Finance at the University of Texas at Austin.

F. William McCalpin: F. William McCalpin (8 November 1921 – 9 December 2009) was an American attorney, who throughout his career was a strong advocate for legal services within the American Bar Association.  He was involved in a variety of leadership positions supporting both the private bar and legal services.  He was named Chair twice of the national Legal Services Corporation and served on that organization's board of directors across four decades.  Hillary Clinton, who served as Chair of the Legal Services Corporation between McCalpin's two terms as Chair, wrote of him, "He was an extraordinary man, a valued mentor and a true champion for equal justice and access to legal services for the poor.  Through his work Bill changed lives and made an indelible impact upon the legal community."

Shih Jun-ji: Shih Jun-ji (; born 10 August 1955) is a Taiwanese economist who currently serves as the Vice Premier.  He served as the second chairman of the Financial Supervisory Commission from 2006 to 2007 after Kong Jaw-sheng was removed from office.  Shih served concurrently as Governor of Taiwan Province and minister without portfolio in 2016.  Later that year, he was named chair of the Taiwan Stock Exchange.

Supporting paragraphs: F. William McCalpin Legal Services Corporation
Answer: the national Legal Services Corporation