Robert Wallace McLean was born to John McLean and Janet McCall on 6 May 1833 in Dalrymple, Ayrshire, Scotland. He married Mary Agnes Frew on 5 December 1851 in Scotland. They had eleven children. Between 1882 and 1885, the family immigrated to the United States and settled in Tooele, Utah Territory. McLean was a coal miner. He died in Tooele on 19 November 1898.
 “Robert Wallace McLean,” FamilySearch (Person ID: KWJD-YFR), accessed 23 Oct. 2020, https://www.familysearch.org/tree/person/timeline/KWJD-YFR; Robert McLean, “Scotland Census, 1871,” database with images, FamilySearch, https://www.familysearch.org/ark:/61903/1:1:VBRZ-37M?from=lynx1UIV8&treeref=KWJD-YFR.