In 1848, Bergen became supervisor of the Eighth and Ninth Wards in Brooklyn and would again hold the position in 1849 and 1850. He was a member of the
New York State Assembly (Kings Co., 1st D.) in
1854; and Supervisor of Brooklyn's Eighth Ward in 1858. Bergen held his post until his death and was reportedly "always prompt, indefatigable and conscientious in the performance of his duties". He was also a strong supporter of the
Republican Party but did not engage the intense political rivalry within the city government at that time.
Illness and death Being accustomed to an active life outdoors however, his health suffered during his later years as a result of the time spent at Metropolitan headquarters. His condition gradually worsened and, by 1866, he began complaining of severe
indigestion. His
digestive organs became rapidly weaker over the next year, but he chose to remain at his post and continued attending meetings with the other commissioners until early July 1867. Confined to his Third Avenue home during his last few days, Bergen died with his family at his side on the evening of July 17, 1867. Police Commissioners Acton and Kennedy were also present and Kennedy later ordered the flags at all precincts lowered at half-mast until his burial. ==References==