Looking for information on Ernhard Sjostrom from Goteborg. Brother's name was Oscar. Father's name also Erhard (with or without the n). Came to America in early 1900's, first went to NY, then Montana, then back to NY. Son Ernhard married Otellia Anna Burnside in Miles City, MO. Any help would be greatly appreciated. Cannot make heads or tails of Swedenish genealogy sites even when translated to English.