Thank you for your question. It's not likely this is what you want to hear. I have been told my dad arrived in America in 1900, with the name "Dale" and eventually married (on 10/20/30) a Galena Norwegian who came to America at age 3 in about 1881, whose last name I can't spell without looking at my birth certificate. Seems you don't need that info anyway, because Dahl and Dale are not where you wanted to go.
Enjoy your day.