George Speirs was born to William Speirs and Agnes Tomson in Tarbolton, Scotland, on 6 January 1827. Before coming to the United States in 1856, he married Janet Lyon. The family lived first in New York before moving to Tooele, Utah Territory, in 1861. Speirs was a weaver, farmer, and merchant. He also served as watermaster and as city sexton. Speirs died on 18 December 1919 in Tooele.
 “George Speirs,” in History of Tooele County (Salt Lake City: Daughters of Utah Pioneers, Tooele County, 1961), 582; “George Speirs,” FamilySearch (Person ID: KWJD-RBG), accessed 4 Nov. 2020, https://www.familysearch.org/tree/person/details/KWJD-RBG.