The lady in the centre is Mary Ball nee Tivey. Her husband Aaron Bonser Ball is far left and son Leslie Albert Stevenson Ball on the Far right.
Her two daughters stood at the back of Mary are Marion Elsie and Winifred Lois, whilst on her left is Irene Grace and on her right Eleanor Thora.
Mary & Aaron emigrated to Canada about 1911 from Carlton in Nottinghamshire. Mary's parents were Isaac Tivey and his first wife, Tryphena Taylor