Question: What is the nickname of undergraduate course taken by the first Professor of Celtic at Jesus College of Oxford University ?

text: List of alumni of Jesus College, Oxford
Alumni -- Celticists
Sir John Morris-Jones
Jesus College is one of the constituent colleges of the University of Oxford in England. Its alumni include politicians, lawyers, bishops, poets, and academics. Some went on to become fellows of the college; 14 students later became principal of the college. It was founded in 1571 by Queen Elizabeth I, at the request of a Welsh clergyman, Hugh Price, who was Treasurer of St David's Cathedral in Pembrokeshire. The college still has strong links with Wales, and about 15% of students are Welsh. There are 340 undergraduates and 190 students carrying out postgraduate studies. Old members of Jesus College are sometimes known as Jesubites. From the world of politics, the college's alumni include two Prime Ministers (Harold Wilson of Britain and Norman Manley of Jamaica), one Speaker of the House of Commons (Sir William Williams), a co-founder of Plaid Cymru (D. J. Williams) and a co-founder of the African National Congress (Pixley ka Isaka Seme). Members of Parliament from the three main political parties in the United Kingdom have attended the college, as have politicians from Australia (Neal Blewett), New Zealand (Harold Rushworth), Sri Lanka (Lalith Athulathmudali) and the United States (Heather Wilson). The list of lawyers include one Lord Chancellor (Lord Sankey) and one Law Lord (Lord du Parcq). The list of clergy includes three Archbishops of Wales (A. G. Edwards, Glyn Simon and Gwilym Williams). Celticists associated with the college include Sir John Morris-Jones, Sir Thomas (T. H.) Parry-Williams and William John Gruffydd, whilst the list of historians includes the college's first graduate, David Powel, who published the first printed history of Wales in 1584, and the Victorian historian John Richard Green.
Name M G Degree Notes
Ellis Evans ( F/HF ) 1952 1954 Graduate scholar Jesus Professor of Celtic ( 1978-1996 )
R. Geraint Gruffydd ( HF ) 1948 1953 DPhil Professor of Welsh at University of Wales , Aberystwyth ( 1970-1979 ) and Director of the Centre for Advanced Welsh and Celtic Studies ( 1985-1993 )
William John Gruffydd 1899 1903 BA English ( 2nd ) ( 3rd in Classics Honour Mods ) Professor of Celtic at the University of Wales , Cardiff ( 1918-1946 ) ( succeeding Thomas Powel , below ) ; Liberal MP for the University of Wales constituency ( 1943-1950 )
William Henry Harris 1910 1913 BA Theology ( 1913 , 2nd ) , BLitt ( 1913 ) Precentor , canon and treasurer of St David 's Cathedral ; also professor of theology briefly before becoming professor of Welsh at St David 's College , Lampeter
George Henderson 1896 1899 ? BLitt Gaelic scholar and Church of Scotland minister , who became a lecturer in Celtic at the University of Glasgow
John Jenkins 1787 ? - - Welsh priest and antiquarian , known as Ifor Ceri , who helped to establish eisteddfodau in Wales in the early nineteenth century ; graduated from Merton College
Bedwyr Lewis Jones 1956 1959 ? ? Professor of Welsh at the University of Wales , Bangor
John Jones 1814 1818 BA Mathematics ( 2nd ) Welsh clergyman and scholar ( bardic name Ioan Tegid ) , who transcribed the Red Book of Hergest for Lady Charlotte Guest
Henry Lewis 1910 ? 1912 ? ? Professor of Welsh at University College , Swansea ( 1921-1954 )
John Lloyd-Jones 1907 1909 ? BLitt First Professor of Welsh at the National University of Ireland , Dublin
Derec Llwyd Morgan ( F/HF ) 1964 1969 DPhil Professor of Welsh ( 1989-1995 ) then vice-chancellor and principal ( 1995-2004 ) , University of Wales , Aberystwyth
Sir John Morris-Jones ( F ) 1883 1888 BA Mathematics ( 3rd , 1887 ) , then research in Welsh Professor of Welsh at University College of North Wales , Bangor ( 1895-1929 ) , who had been awarded a one-year scholarship for research in Welsh with John Rhys
John Owen 1872 1876 BA Mathematics ( 2nd ) ( 2nd in Mods in Classics and in Mathematics ) Professor of Welsh ( 1879-1889 ) and principal ( 1892-1897 ) at St David 's College , Lampeter before becoming Bishop of St David 's ( 1897-1926 )
Sir Thomas ( T. H. ) Parry-Williams ( HF ) 1909 1911 BLitt Professor of Welsh at the University of Wales , Aberystwyth ( 1920-1952 )
Thomas Powel 1869 1872 BA Literae Humaniores ( 3rd ) Professor of Celtic at University College , Cardiff ( 1884-1918 ) ( succeeded by William John Gruffydd , above )
Llywarch Reynolds 1868 1875 BA Welsh solicitor and Celtic scholar ; many of the antiquarian manuscripts he collected are now held by the National Library of Wales
Sir John Rhys ( HF/F/P ) 1865 1869 BA Literae Humaniores ( 1st ) First Jesus Professor of Celtic ( 1877-1915 )
Evan Thomas 1891 1895 BA Theology ( 2nd ) Professor of Welsh at St David 's College , Lampeter ( 1903-1915 ) , where he helped to revive the position of Welsh in the college and curriculum
John Williams 1832 1838 BA Mathematics ( 4th , 1835 ) , MA ( 1838 ) Priest and Welsh scholar ( bardic name Ab Ithel ) , who edited Y Gododdin and completed Aneurin Owen 's edition of Annales Cambriae