Malcolm Sargent
In 1932 he was very ill with tuberculosis, but he recovered during the next few years.  He often conducted the London Philharmonic Orchestra which had been formed in 1932 by Thomas Beecham.   He did not often conduct opera, but he did conduct at the Royal Opera House: in 1936 with Gustave Charpentier's opera Louise in 1936 and in 1954 the first performance of Walton's Troilus and Cressida.