Julian Sidney Rumsey (born: April 3, 1823 in Batavia, New York; died: April 20, 1886; buried in Graceland Cemetery) served as mayor of Chicago, Illinois (1861-1862) for the Republican Party.
Rumsey arrived in Chicago on July 28, 1835 to work in a shipping company owned by his uncles.
Inaugural Address (http://www.chipublib.org/004chicago/mayors/speeches/rumsey61.html)