Evangeline Livens (1898-1983) music search?

[KenjiF]

Hello everyone! I was wondering whether anyone could help me track down a score of the piano Sonata by Evangeline Livens? Sister of Leo Livens (I performed his sonata here in Australia a couple of years ago) the only information I can find is that Evangeline performed her own sonata at RAM on 4th November 1915. Unfortunately RAM archives has so far revealed very little...thank you in advance!