The purpose of this legislation is to officially name a specific post office in Fort Madison, Iowa, after Martin L. Graber. This act recognizes Graber's contributions or significance, although the text does not specify what those contributions are. The key provision of this legislation is the designation of the United States Postal Service facility located at 1019 Avenue H in Fort Madison as the "Martin L. Graber Post Office." This means that all official references to this post office in legal documents, maps, and other records will now use this new name.