Attestation approved by ? Macdonald, Matron-in-chief, for D.M.S., Canadian Contingents.
Birth year unconfirmed
Nursing Sister Mary Ethel Morrison kept a photo album which became the subject of a book entitled Battlefront Nurses in WWI, written by her niece. She included information from the wartime diary of NS Elsie Dorothy Collis in this publication:
Battlefront Nurses in WW I
Author: Maureen Duffus
Published 2009, Victoria, BC
A diary, a memoir & photo albums from two British Columbia Nursing Sisters.
Nursing Sisters of British Columbia
Born May 11, 1892 at Victoria, BC, w/o H Percy Collis, daughter.
Feb. 4, 1917, 16 - photo, Nursing Sister E. D. Collis, eldest d/o Mr. & Mrs. H. P. Collis, Esquimalt, and sister of Flt. Sub-Lieut. D. P. Collis, RFC, writes of elaborate arrangements carried out by No. 5 base hospital...
Mar. 5, 1919, 5 - photo/Capt. Douglas Percy Collis, RAF, s/o Mrs. Collis, Victoria West, home on 3 months leave. Is Flt.-Commander, and had been taken POW by Germans. A sister, who had been nursing in France for a year, is now at Shorncliffe.