I'm pretty certain, too, that Margaret Fleming remained in the employ of Marian Thayer for some time after the disaster. Brian Ahern traced them, making an Atlantic crossing together on the 'Lusitania' in early 1914. Mrs Thayer would, presumably, have been an excellent mistress to have. Not only was she quite beautiful but she was noted for her elegance and chic. Naturally, personal maids took pride in the smartness of their employers and used to bask in their reflected glory.
A passport photograph of Margaret, taken in 1924, can be found on her ET biography page.