In St. Louis I found an old photo of a baby. The photo is from the early 1900s, but is of very good quality, so I would guess it was more around the 20s (though that is a complete guess).
The front of the picture is labeled, in pen, "Marie Aloysia Rohlfer." The back, however, in what looks like the same handwriting, is labeled in pencil "Miss Bernardine Dierker."
If you have any information, I would greatly appreciate it.