Falter, John Philip, 1910-1982. Remember last December! : --"that free peoples may not perish from this earth" : enlist in your Navy today., poster, [1942]; (https://digital.library.unt.edu/ark:/67531/metadc484/m1/1/: accessed April 19, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; .