• The family sailed to America in 1866 on the ship Humboldt.  The ship manifest shows their surname as "Gullow," and the New York Passenger List shows their surname as "Gallow."
  Sophia's obituary confirms that the Seversen family came to Utah in 1866. 

Peter Nebeker Company (1866)

• Age at Departure: 43
• Head of Household

Sources

• New York Passenger Lists, 1820-1957.
• "Obituaries," Salt Lake Telegram, 18 November 1944, 9.
• Saints By Sea: Latter-day Saint Immigration to America