Well, I can't find a photo to confirm this anywhere, but I'd bet 50p that she is Vivian Reed, who played Princess Gloria in the early Oz films: Patchwork Girl of Oz, Magic Cloak of Oz, and His Majesty the Scarecrow of Oz (all 1914). Twenty-five years later, Reed had a silent bit in the most famous screen version of L. Frank Baum's story - the one starring Judy Garland filmed in 1939!
I feel sure that it is her. It would be lovely to find a photo to prove it though. She's beautiful, isn't she!
I love deadlines. I like the whooshing sound they make as they fly by. Douglas Adams.