- FondsRootham - Papers of Cyril Bradley Rootham
- Series1 - Compositions by Rootham
- FileT6 - 'The two sisters'
- Item1 - 'Concert overture (full score) to the opera 'The two sisters' by Cyril Bradley Rootham'
- Item2 - 'Dance music from act III of the opera 'The two sisters' by Cyril Bradley Rootham'
- Item3 - 'The two sisters: an opera in three acts founded on the ballad 'The twa sisters o'Binnorie'; text by Marjory Fausset, music by Cyril Bradley Rootham' (London: Goodwin & Tabb, 1921)