Peter Redford Scott Lang, Sir Alexander Campbell Mackenzie, Alexander Ferrier Mitchell

Peter Redford Scott Lang (1850-1926), professor of mathematics at St Andrews University from 1879 until his retirement in 1921. He had studied at Edinburgh University, and taught there before being appointed to St Andrews.

Sir Alexander Campbell Mackenzie (1847-1935), conductor and composer. He studied the violin in Thuringia, went on to compose orchestral works, songs and operas. He was principal of the Royal Academy in London and conductor for the Philharmonic Society.

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