[Dietrichson] returned to America the second time.

The evidence

• “Dietrichson was bom at Fredrikstad, Norway, April 4, 1815. He first came to America in 1844, returned to Norway the next year and came back to America the second time in 1846. He remained until 1850, when he again returned to Norway.”

  1908-brown-rock-county/18-scandinavians.md, Vol. 1, PDF p. 485 / book p. 450

  Brown, William Fiske, editor. Rock County, Wisconsin: A New History of Its Cities, Villages, Towns, Citizens and Varied Interests, from the Earliest Times, Up to Date. Chicago: C. F. Cooper & Co., 1908. 2 vols. archive.org/details/rockcountywiscon01brow, archive.org/details/rockcountywiscon02brow.

  Grade A: Found on a page of one of our sources