New Hampshire Census
1800 Census Omissions--The 1800 census is missing for the towns of Alton, Barnstead, Brookfield, Effingham, Gilmantown, Middleton, New Durham, Ossipee, Tuftonborough, Wakefield, and Wolfeborough in Strafford County. Fortunately, the 1798 Direct Tax for many of these towns exists and serves as a census substitute. The 1800 census is also missing the towns of Atkinson, Greenland, Hampton, Hampton Falls, Londonderry, Northampton, Pehlam, Plaistow, Salem, Seabrook, Stratham, and Windham in Rockingham County.
1820 Census Omissions--The 1820 census is missing for Grafton County and the Rockingham County towns of Gosport, Greenland, New Castle, Newington, Portmouth, and Rye, Most of the census for Strafford County is missing except for the towns of Centre Harbor, Gilford, Moultonborough, New Hampton, and Sanbornton.
1850 Census Problem--Before the boundary dispute was settled in 1842, many residents of northern Coos County considered themselves within Canadian jurisdiction, so the Coos County census may be incomplete before 1850.
Enumerations of colonial residents were made in New Hampshire for various years prior to the federal census. Lists of early residents from 1732 to 1742 that can be used as substitutes for census records are found in the tax records of the towns.
Heritage Quest Online: http://www.heritagequestonline.com
Census Online: http://www.census-online.com/links/NH/
Genealogy Today: http://dir.genealogytoday.com/usa/nh/census.html
Access Genealogy: http://www.accessgenealogy.com/census/newhampshire.htm
New Hampshire Research Outline. Salt Lake City, Utah: Intellectual Reserve, Inc., Family History Department, 1998, 2001.