Lawrence was born in 1903. He passed away in 1962.
Sources
"United States Census, 1920," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:M8H1-RHR : accessed 24 May 2020), Lawrence S Yost in household of William H Yost, Turnback, Lawrence, Missouri, United States; citing ED 120, sheet 2B, line 62, family 35, NARA microfilm publication T625 (Washington D.C.: National Archives and Records Administration, 1992), roll 932; FHL microfilm 1,820,932.
"Nebraska Marriages, 1855-1995," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:Q2ZP-YDD9 : 28 November 2018), Lawrence Yost and Mary Nagy, 16 Sep 1939; citing Marriage, Papillion, Sarpy, Nebraska, United States, Nebraska State Historical Society, Lincoln; FHL microfilm 2,108,176.
"United States Census, 1940," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:K994-SDC : 22 May 2020), Lawrence Yost, Ward 8, Omaha, Omaha City, Douglas, Nebraska, United States; citing enumeration district (ED) 94-112, sheet 7A, line 13, family 119, Sixteenth Census of the United States, 1940, NARA digital publication T627. Records of the Bureau of the Census, 1790 - 2007, RG 29. Washington, D.C.: National Archives and Records Administration, 2012, roll 2272.