The division occurred because of a continuing difference over liberty of conscience (as defined in the Westminster Confession of Faith), which came to a head over the attendance of Lord Mackay of Clashfern at a Requiem Mass which formed part of the funeral of a colleague, former Lord Justice Clerk Lord Wheatley.
The Editor-in-Chief of volumes reissued from August 1998 onwards was Lord Mackay of Clashfern.
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In 2007, Halsbury's Laws celebrated its centenary with an evening of seminars led by Lord Mackay of Clashfern and Professor Richard Susskind OBE, and the publication of a collection of centenary essays.
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Traditionally, the role of Editor-in-Chief of Halsbury's Laws is held by a former Lord Chancellor, and the current incumbent is Lord Mackay of Clashfern.
The current Keeper of the Signet is Lord Mackay of Clashfern, former Lord Advocate of Scotland and Lord Chancellor of the United Kingdom.
James Bond | James Joyce | James Brown | James Cook | James Stewart | James II of England | James Garner | James | James Cameron | James Taylor | James Madison | James May | Henry James | James Cagney | James II | James Caan | James Earl Jones | LeBron James | James Monroe | James Franco | James I | William James | James Wyatt | James, son of Zebedee | James Dean | James A. Garfield | Etta James | Jesse James | James Mason | Clive James |
In 1966, Blackburn was elected as a Republican to the Ninetieth Congress, having narrowly defeated freshman incumbent James MacKay by 360 votes: 55,249 (50.2 percent) to 54,889 (49.8 percent).
Pioneering aviator Elsie Mackay, daughter of the first Earl of Inchcape, lived at the castle until her untimely death in 1928 in an attempt to fly the Atlantic in a single engined Stinson Detroiter.