Mary Elizabeth Rowell (1885-1971)
Mary Elizabeth Rowell is shown on the family picture as part of Sydney Benjamin’s family:
Mary is shown (according to our family records-http://rowellfamily.net/site/index.html) as standing on the extreme right of the picture.
On the Ancestry website growler2 (who seems to be a descendent of Thomas S Rowell) there is a picture of a baby linked to her record: