Who was, and whatever became of, the early nineteenth century Swedish movie actress Mary Johnson? Good questions. Born in the late 1890s, she appeared in her first film in 1913 and retired in 1931, in her mid 30s. She would live another four decades, dying in May of 1975. She is virtually unknown to modern cinema viewers, and in 2010, her name is not exactly Google friendly. I know of her only due to her brief appearance in archival footage in the stellar 1995 documentary "Cinema Europe: The Other Hollywood," narrated by Kenneth Branaugh.
There is little about her on the Internets (save for the foreign language article depicted above which, or course, I am unable to read). In this post, I've cobbled together about as much information and imagery on Ms. Johnson as I could locate on the Internets (including a few screencaps from the Cinema Europe documentary, which featured footage from Johnson's film, 1919 film Herr Arnes pengar (a/k/a Sir Arne's Treasure of The Treasure of Arne) which featured Johnson in the role of Elsalill. (Believe it or not, that film is available on DVD.).
Below are some additional promotional materials I located on Ms. Johnson: