Andersson, Pehr Alfred and Carl Johan

[J. D.]

Seeking information on Pehr Alfred and Carl Johan Andersson. Pehr came to Texas in late 1889, and his brother Carl was already in Seattle, Washington at the time. From a letter written to Pehr from Carl , it appears that Carl changed his name to John Dahl. I have found the birth records of both, (also of several siblings) and am trying to determine exactly when and where they left Sweden.  
My mother is the youngest daughter of Pehr and we would like to communicate with any living relatives in Sweden if they could be located.