There was Gustavus Eisen, a man of many titles such as archaeologist and botanist. He was the man who succeeded in turning the Segoia territory into a national park in order to save the giant trees.
And there was the astronomer and researcher Gustaf Strömberg at the Mount Wilson Observatory in Southern California between 1917 and 1946. He was acknowledged at the World Fair in New York as one of the Americans of foreign birth who had made "outstanding contributions to American civilization."