This attestation was approved by ? Macdonald, Matron-in-chief, for D.M.S., Canadian Contingents.
Nursing Sister Winifred Marie Byrne's photo appeared in Our Heroes in The Great World War, compiled by J. H. De Wolfe, Patriotic Publishing Co., Ottawa, Ontario, 1919. According to this source, she served in England and France and was decorated in 1917 by King George.
Image to be attached shortly.