Dear Kimi,
This could be your family in the 1940 census in Virginia. Was your grandmother ever called Shirley? Do these names look familiar?
"United States Census, 1940," database with images, FamilySearch(https://familysearch.org/ark:/61903/1:1:VRY2-JVZ : accessed 22 January 2018), Lewis Blankship, Cedar Mountain Magisterial District, Culpeper, Virginia, United States; citing enumeration district (ED) 24-3, sheet 6A, line 20, family 94, 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 4256.
-NGP