Harrison converted to the Church of Jesus Christ of Latter Day Saints in England in the 1840s in part due to the preaching of Orson Pratt.
He immigrated in 1861 with his niece, Alice Harrison, sailing on the ship "Monarch of the Sea."
After immigration to Utah Territory, Harrison and Tullidge were co-editors of the Peep O' Day, believed to be the first magazine in the Intermountain West.
[2] He wrote the text for a hymn in the Latter-day Saint Hymnal "Sons of Michael, He approaches."
He also designed his own home, sometimes referred to as "the castle" and located in the Capitol Hill Historic District at 10 West 300 North in Salt Lake City.