I looked at the 1910 census again and found Pearl, Ruby and their mother, Rose in South Bend, Indiana, living at 525 Scott St. Blanche Ireland was listed one page before them, at 625 Scott St and a boarder in her home was Rose Burkheiser. I also found Virena Hack and Harry Helsman might have been Harry Helman.
If I keep working at it maybe I'll make another connection!
Front row: Rose Berkhuner?, Pearl Camfield, Harry Helsman?, Ruby Camfield, Blanche Ireland
Taken at 318 Scott St, South Bend, Ind.