Algernon Graves, The Royal Academy of Arts: a complete dictionary of contributors, London: H. Graves, 1905-1906, vol. VI, p. 14 ("O'Neil, Henry Nelson, A.R.A. Painter, 68 Newman Street. ... 1849. 488. Mozart's last moments. 'At two o'clock on the same day, which was that of his death, he had been visited by some performers of Schickaneder's theatre, his intimate friends. The ruling passion was now strongly exemplified. He desired the score of the Requiem to be brought, and it was sung by his visitors, round his bed, etc."—Holmes.")
