Lambert was born in 1899. He was the son of Jefferson D. Walter and Jennie Stevens.
"Ohio, County Marriages, 1789-2013," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:2Q4M-NXR : 8 December 2017), Lambert S Walter and Irma E Dohm, 02 Sep 1922; citing Marriage, Lucas, Ohio, United States, , Franklin County Genealogical & Historical Society, Columbus; FHL microfilm.
"United States Census, 1940," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:KWDQ-FT5 : 14 March 2018), Lambert S Walter, Ward 21, Toledo City, Toledo City, Lucas, Ohio, United States; citing enumeration district (ED) 95-325A, sheet 5A, line 26, family 111, 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 3266.