This photo was taken by my Grandfather, James S. Horne, my Dad’s Dad, at the Hudson Bay Company Wholesale Branch in Vancouver, BC.
The caption as he wrote it was: Walter Thicke, Maggie Keeves, Tom McBain, Miss McAllister, Edith Thomas and Lamont Milne (office boy) at the H.B.C. Wholesale Branch, Water St, Vancouver. Date: April 1913
Note the he and Edith Thomas were married later that year.