Census records and name lists for New York are found mostly at the county level, which is why this work shows precisely which census records or census substitutes exist for each of New York's sixty-two counties and where they can be found. In addition to the numerous statewide official censuses taken by New York, this work contains references to census substitutes and name lists for time periods in which the state did not take an official census. It also shows the location of copies of federal census records and provides county boundary maps and numerous state census facsimiles and extraction forms.

A comprehensive, well-documented genealogy of the descendants of Gerrit, Lambert, and Elias Dorland, early settlers of New Netherland/New York. In addition to the male-lines, descendants of daughters are traced, in some cases for many generations. These families migrated early in large numbers to New Jersey, Pennsylvania, Kentucky, New York, Ohio, Indiana, Missouri, California and Oregon, as well as Canada. Many errors in earlier accounts of the Dorlands are corrected.