I found, I believe, another sister for Karl. Selma Victoria, daughter of Ester Charlotta Svensdotter, born 1883 in Ramdala (it appears Ester had at least 4 children out of wedlock). Karl also had a daughter named Selma, b. 1927 in Philly....I stumbled across this Selma while looking for info on his daughter Selma.
I believe Selma #1 may have come to the US, based on a family member who remembers their mother mentioning an aunt Selma here in Philadelphia....but so far I can't find her anywhere over here, or in immigration records!!
Is there anyone who can provide any assistance or advice?!