I found this composer as well while looking for other Romanian composers.
Wikipedia has very little information on her as well.
She was born as Elena Teyber in Vienna to the Austrian composer Anton Teyber.
She studied music under her father, and later on under an Italian tenor, Domenico Donzelli.
Three vaudevilles are mentioned (Fete pastoral des bergers moldaves, Contrabul, and Tiganii), as well as a few songs.