This military record seems to be attached (I cannot tell whether correctly or incorrectly) to a familysearch profile for your grandfather. In that profile his spouse is given as Ruth Goodman? Does any of this correlate with what you already know?
"United States World War II Army Enlistment Records, 1938-1946," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:KMV9-DF3 : 5 December 2014), Lee W Robinson, enlisted 27 Mar 1943, Baltimore, Maryland, United States; citing "Electronic Army Serial Number Merged File, ca. 1938-1946," database, The National Archives: Access to Archival Databases (AAD) (http://aad.archives.gov : National Archives and Records Administration, 2002); NARA NAID 1263923, National Archives at College Park, Maryland.