music professor in London

One family member was a music professor in London in 1911 (according to the newly available 1911 census), I have been trying to find a source of information to learn more about this but without luck. Can anybody suggest any useful resources?

Russian link

Rumour has it that somebody in the family was a lady in waiting to a Russian princess in London.
I have heard this rumour from two people in the family who did not know of each other's existence until approximately a month ago so I think there is probably something in it.

I have nothing to go on apart from the fact that Olga is not usually a name that was common in England in the 19th Century and, after generations of more usual names, one family called their daughter Olga Edith Maud.

Rose Mabel Sturney

born in 1890 in Winton, Hampshire
daughter of Edward Dadinett and Sarah

I am trying to find out who she married and if she had issue. Any ideas?

Edward Walter Dabinett

Edward was from Hinton Martell. He was born there in 1853 and married Sarah who was from East Grinstead (which I know to be in/near Sussex but the records say Wiltshire - are there two?)