These materials were in a folder labeled "Government" among Neiman's papers.
Much of the correspondence in this file appears to have been generated when Gilbert Neiman was employed by the Department of Agriculture, and perhaps previously while he was applying for government jobs.
There are many other types of documents in this file other than correspondence including; tax return information for Gilbert and Carol Neiman, and employment applications for Gilbert and Carol Neiman. There are also partial cover letters from Gilbert Neiman related to his job searches and additional correspondence related to job searches. By perusing these files, a great deal of personal information about Gilbert Neiman can be gleaned.