Klaus Carlson & Klara Lundeen

[Carlson]

Seeking info. on Klaus Carlson (born abt. 1874 probably in Uppsala, Sweden.  Klaus Carlson married Klara Lundeen in 1874 in Uppsala, Sweden.
Klaus and Klara (Lundeen) Carlson emigrated from Sweden to the U.S. via New York between 1900 and 1904 and settled in Austin, Illinois (a surburb of Chicago).  Any info on Klaus or Klara (Lundeen) Carlson or their families would be greatly appreciated.

[Sam Blixt]

Hi Carlson,
 
Do You have birthdates for anyone of them?
You wrote that he was born 1874 and they married 1874 in Uppsala, is that correct?
 
Regards/Sam Blixt