The records are "fragments" that have survived in the City Archives. Most of the records are in the form of incoming letters to the mayor. In some cases related materials are fastened together. The arrangement in alphabetical by name of correspondent (corporate or individual). Where only one or two items exist for a given correspondent, those items are filed in alphabetical miscellaneous folders. Much of the material is "ceremonial" (i.e., letters of introduction/greetings, letters of appointment, etc.) but there are documents of more significance, especially in the files for city of New Orleans government agencies. In the file "United States Treasury Department" there is a letter from the captain of the Rex carnival organization discussing parade routes.

Individual correspondents include Congressmen Newton Blanchard, C.J. Boatner, Charles Buck, R.C. Davey, Adolph Meyer, Andrew Price, and S.M. Robertson. Also represented is Archbishop Francis Janssens and the mayors of several American cities. In addition to the correspondence there is also a copy of Fitzpatrick's 1896 report to the City Council and a questionnaire giving details on the operation of the Mayor's Office.