I have just added a series on the 1863 New York City Draft Riots to my website. This series is a day-by-day account of the fighting, culled from eyewitness accounts from the police and military. Approximately 50,000 people are believed to have rioted. The 1863 riots are considered the worst in American history.http://www.irishinnyc.freeservers.com
There are some police officers named in this series. If you're researching someone on the NYPD during this time period, you may want to stop by and read it. The series gives a good overview of what the police went through.
NEW YORK CITY POLICE board admin