Thomas Coman was President of the New York City

New York City

New York is the most populous city in the United States and the center of the New York Metropolitan Area, one of the most populous metropolitan areas in the world. New York exerts a significant impact upon global commerce, finance, media, art, fashion, research, technology, education, and...

 Board of Aldermen from 1868 to 1871.

He became Acting Mayor of New York

Mayor of New York City

The Mayor of the City of New York is head of the executive branch of New York City's government. The mayor's office administers all city services, public property, police and fire protection, most public agencies, and enforces all city and state laws within New York City.The budget overseen by the...

 when the resignation of Mayor John Thompson Hoffman (who had just been elected Governor

Governor

A governor is a governing official, usually the executive of a non-sovereign level of government, ranking under the head of state...

 of the State of New York) became effective on November 30, 1868, and he served one month as Mayor until A. Oakey Hall, elected Mayor on December 1, took office on January 4, 1869.

Additional Source

The Encyclopedia of New York City

The Encyclopedia of New York City

The Encyclopedia of New York City is a comprehensive reference book on New York City. Historian and Columbia University professor Kenneth T...

, edited by Kenneth T. Jackson (Yale University Press and The New York Historical Society, 1995, ISBN 0-500-05536-6 )