Here's a baby picture of Pearl's older brother, Bonito, who was about ten years older than she was. He grew up to marry a lady named Eddie (short for Edwina?) and worked as a plant superintendent.
I found some other photographs taken by J.J. Burke, but little information about the photographer himself. Searching his name on the internet, however, brought up a surprise- a picture of Pearl's brother, Archie. He had apparently served as a wagoner in the first World War and died of disease during this time. I imagine how terrible this must have been for Pearl and her family.
If you know who this may be, let us know in the comments!