Question: What ages are the students at the Boy's School where David Allen Conway was educated?

full_context: Document 1: Derby High School, Derby: Derby High School is an independent day school for girls aged 3 to 18 and boys up to age 11 in the suburb of Littleover in Derby, it is a member of the Girls' Schools Association.
Document 2: Kesteven and Sleaford High School: Kesteven and Sleaford High School, (KSHS), is a selective school with academy status for girls aged between eleven and sixteen and girls and boys between sixteen and eighteen, located on Jermyn Street in the small market town of Sleaford, Lincolnshire, England, close to Sleaford railway station.
Document 3: Haberdashers' Aske's Boys' School: The Haberdashers' Aske's Boys' School (also referred to as Haberdashers', Habs or Habs Boys) is a public school for boys aged 5–18 in Elstree, Hertfordshire, England. It is a member of the Headmasters' and Headmistresses' Conference and the Haileybury Group.
Document 4: Royal Academy of Music: The Royal Academy of Music in London, England, is the oldest conservatoire in the UK, founded in 1822 and receiving its Royal Charter in 1830. It is one of the leading conservatoires in the world, coming top of the Complete University Guide for 2018 and Guardian University Guide for 2018. Famous Academy alumni include Sir Simon Rattle, Sir Harrison Birtwistle, Sir Elton John and Annie Lennox.
Document 5: David Fallows: David Fallows (born 20 December 1945) is an English musicologist specializing in music of the late Middle Ages and Renaissance and the performance practice of music. He is a leader in fifteenth-century music studies, particularly Guillaume Dufay, Josquin des Prez, and secular song.
Document 6: David Nicholls (musicologist): David Nicholls (musicologist) (born in 1955, Birmingham, United Kingdom) is a British musicologist and composer. From 2000 through 2013 he was Professor of Music at the University of Southampton; subsequently he took early retirement and was awarded the title of Emeritus Professor of Music. From 1987 to 2000 he was Professor of Music and sometime Research Dean of the Faculty of Humanities at Keele University. Between 1984 until 1987 Nicholls was based at Selwyn College, Cambridge as a Keasbey Fellow in American Studies.
Document 7: David Blackbourn: David Gordon Blackbourn (born 1949 in Yorkshire, England) is Cornelius Vanderbilt Distinguished Chair of History at Vanderbilt University, where he teaches modern German and European history. Prior to arriving at Vanderbilt, Blackbourn was Coolidge Professor of History at Harvard University and served as director of the university's Minda de Gunzburg Center for European Studies from 2007-2012. He is on the editorial board of the journal "Past & Present"; the academic advisory board of the Institute for European History, Mainz; and the advisory board of the Friends of the German Historical Institute, Washington. He was chair of the Harvard History Department in 1998–1999 and 2000–2002, and was president of the Conference Group on Central European History of the American Historical Association (since 2012 called Central European History Society) in 2003–2004.
Document 8: Berkhamsted School: Berkhamsted School is an independent school in Berkhamsted, Hertfordshire, England. The present school was formed in 1997 by the amalgamation of the original Berkhamsted Grammar School, founded in 1541 by John Incent, Dean of St Paul's Cathedral, Berkhamsted School for Girls, established in 1888, and Berkhamsted Preparatory School. The new merged school was initially called Berkhamsted Collegiate School, but reverted to Berkhamsted School in 2008. In 2011 Berkhamsted School merged with Heatherton House School, a girls' preparatory school in Amersham, to form the Berkhamsted Schools Group. The Group acquired Haresfoot School in Berkhamsted and its on site day nursery in 2012, which became Berkhamsted Pre-Preparatory School for children aged three to seven, and Berkhamsted Day Nursery.
Document 9: Belmont Hill School: Belmont Hill School is an independent boys school on a 32 acre campus in Belmont, a suburb of Boston, Massachusetts. The school enrolls approximately 440 students in grades 7-12, separated into the Middle School (grades 7-9) and the Upper School (grades 10-12), and refers to these grades as "Forms" with a Roman Numeral I through VI. While the majority of attending students are day students, there are some who enroll in the school's five-day boarding program, which becomes an option for students in their 9th grade year. In addition to the school's history of academic prestige, the school exhibits a rich athletic tradition as a participant in the competitive Independent School League. Members of the Class of 2010 were accepted at 42 colleges and universities. Belmont Hill is also a founding member of the International Boys' Schools Coalition.
Document 10: David Corwin: David L. Corwin is a board-certified psychiatrist, child and adolescent psychiatrist, and forensic psychiatrist. Corwin has done extensive work into the long-term impact of child violence and abuse on health, and has promoted family support and treatment programs. Corwin has worked as a consultant, a lecturer, a trainer, and an evaluator of suspected or known child sexual abuse cases throughout many countries, as well as serving as an expert witness of child sexual abuse cases. Corwin has founded, directed or chaired groups that serve to advance prevention and protection against child violence and abuse, as well as furthering the education and research of the impact of child abuse.
Document 11: G. C. Peden: George C. Peden is an emeritus professor of history at Stirling University, Scotland. He has written about the British Treasury; Keynesian economics; economic aspects of defence and foreign policy; the welfare state, and some recent Scottish economic history. He was born in Dundee in 1943 and educated at Grove Academy, Broughty Ferry. He worked for eight years as a sub-editor of the Dundee Evening Telegraph before becoming a mature student at Dundee University, graduating MA with first class honours in modern history in 1972. He was a postgraduate at Brasenose College, Oxford, and a research fellow at the Institute of Historical Research, London, and graduated D.Phil from Oxford in 1976, having completed his thesis under the supervision of Professor N.H. Gibbs. He was a temporary lecturer in history, Leeds University, 1976-7; lecturer in economic and social history, and then reader in economic history, Bristol University, 1977–90; and professor of history, Stirling University, 1990-2008. He was a British Academy research reader, 1987-9, and visiting fellow, All Souls College, Oxford, 1988-9, and St Catherine's College, Oxford, 2002. He is a fellow of the Royal Society of Edinburgh. According to the first version of this article, probably written by a student, Peden had a reputation for insisting on high standards of grammar in essays, perhaps reflecting his earlier career as a sub-editor. He lives in Callander, on the edge of the Scottish Highlands, and divides his time between hillwalking and research and writing.
Document 12: Elstree: Elstree is a village in the Hertsmere borough of Hertfordshire, England, on the former A5 road, which followed the course of Watling Street, approximately thirteen miles northwest of central London. In 2011, its population was 5,110. It forms part of the civil parish of Elstree and Borehamwood, originally known simply as Elstree.
Document 13: David Conway (music historian): David Allen Conway (born 17 February 1950) is a British music historian. Born in London, and educated at Haberdashers' Aske's Boys' School, he studied economics and psychology as an undergraduate at King's College, Cambridge and later obtained a PhD degree under the supervision of John Klier at University College, London, where he has been since 2008 an Honorary Research Fellow. He is the brother of the journalist Barbara Conway (1952–1991).
Document 14: Ashlyns School: Ashlyns School is a mixed secondary school and sixth form located in Berkhamsted, Hertfordshire, England. The school was established in 1935 as the final location of the Foundling Hospital, a children's charity founded in London in 1739. The Berkhamsted building converted into a school in 1955.
Document 15: St Albans School, Hertfordshire: St Albans School is an independent school in the city of St Albans in Hertfordshire, in the South East of England. Entry before Sixth Form is for boys only, but the Sixth Form has been co-educational since 1991. Founded in 948 by Wulsin, St Albans School is not only the oldest school in Hertfordshire but also one of the oldest in the world. The school has been called "Britain's oldest public school" by the "Daily Mail". Nicholas Carlisle, in 1818, described the school as "of very ancient origin, and of great celebrity" and the "Good Schools Guide" describes St Albans as a "traditional public school, with a rich history".
ground_truth: 5–18