Citation Codes Equivalent Citations citation codes Judges Henry J. Scudder See more information ... Smart Summary Please sign up to generate summary. In the Matter of the Petition of JOSEPH J. DUFFY, Appellant, for an Order of Mandamus against JOHN P. O'BRIEN, as Mayor of the City of New York, and Others, Respondents. Order denying appellant's motion for a mandamus order to compel his reinstatement in the service of the city of New York unanimously affirmed, with costs, as a matter of law and not in the exercise of discretion. No opinion.