The 1940 census gives Robert's occupation as shipping clerk.
Sources
"Texas Birth Index, 1903-1997," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:V8CG-378 : 5 December 2014), Robert Gerald Brown, 03 Jul 1911; from "Texas Birth Index, 1903-1997," database and images, Ancestry (http://www.ancestry.com : 2005); citing Texas Department of State Health Services.
"United States Census, 1940," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:2:9MFM-MDX6 : 29 July 2019), Household of Gerald Brown, Tract 24, Dallas, Justice Precinct 1, Dallas, Texas, United States; citing enumeration district (ED) 255-117, sheet 3B, line 62, family 57, 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 4176.
"United States Social Security Death Index," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:J53S-3J3 : 10 January 2021), Robert Brown, Dec 1983; citing U.S. Social Security Administration, Death Master File, database (Alexandria, Virginia: National Technical Information Service, ongoing).
"Texas Death Index, 1964-1998," database, FamilySearch (https://familysearch.org/ark:/61903/1:2:M93J-TGH : 5 December 2014), Entry for Robert G Brown, Dallas, Texas, United States; citing Department of State Health Services, Austin.
Find a Grave, database and images (https://www.findagrave.com/memorial/237368111/robert-gerald-brown: accessed 01 August 2022), memorial page for Robert Gerald Brown (3 Jul 1911–22 Dec 1983), Find a Grave Memorial ID 237368111, citing Grove Hill Memorial Park, Dallas, Dallas County, Texas, USA; Maintained by Patsy Conlon (contributor 48754418).
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