For those of you who did not see the announcement from Ancestry.com, it has now posted New York mortality schedules for 1850 to 1880.
If you are not familiar with them, the mortality schedules recorded information about persons who had died in the twelve months preceding the U.S. federal censuses. They recorded the name of the deceased, gender, age, color, whether widowed, place of birth (usually state, territory, or country), month of death, occupation, cause of death and the length of the illness. What we typically look at when we search the census record is the Population Schedule. But there were other documents produced during the census that have been slower in being indexed and made available to us...the mortality schedule is one of those.