Eva Roos, née Vedder (1872–1956) was an artist and illustrator, mainly of children's books. She is believed to have lived and worked in the Hampstead area of London in the late 19th and early 20th centuries. Books illustrated by Roos include: East Lynne by Mrs Henry Wood published 1900s (?) by Collins, London. Features 8 illustrations by Eva Roos. Helen's Babies by John Habberton. First published by Grant Richards, London 1911. Features sixty illustrations by Eva Roos. Republished in 1919 by Chatto & Windus. The Emperor's Medal, a story for children by D. S. Batley, published by T. C. & E.
https://en.wikipedia.org/wiki/Eva_Roos