Stephanie, I've never seen a good explanation of what happened to the census population schedules of 1790-1820, but there are tax lists (also called tax ratables) that can be helpful. For this period, most of them are owned by the New Jersey State Archives, but others exist in other repositories (for example, 1811 and 1827 for Middletown are at the Special Collections at the Alexander Library at Rutgers). The New Jersey State Archives has prepared a wonderfully comprehensive online catalogue of their collection; these tax lists have been microfilmed and the film is available for Interlibrary Loan; it can also be used at the local FHC. At one time the microfilm was available for purchase, and may be again after they refilm the tax lists. Some of the tax lists have also been abstracted and published in _The Genealogical Magazine of New Jersey_. In which town, and for which time period, are you searching? The list of 1790 freeholders has also been published and is most helpful, but of course it does not list all taxpayers, only those who achieved a certain economic status, the definition of which I've never been able to find. The New Jersey State Archives tax lists were indexed and published years ago by Ronald Vern Jackson. You might be able to get his book through Interlibrary Loan. It should be used with caution, because there are many errors, but it can pin down a locality and time period so that the actual tax lists can then be searched. Judi