Found this at http://www.ancestry.com/learn/reference/state/in.htm Factsheet Census Records Federal censuses for the state of Indiana began in 1820, continuing every ten years and currently available through 1920; the mostly destroyed 1890 census being excluded. The 1820 census is missing for the county of Daviess, and the 1870 & 1910 censuses are currently unindexed. It is also noted that many rural residents were missed in the 1850 census, though appear on the 1850 agricultural enumerations. An 1807 territorial census exists and has been published, as has one for 1810 (for Harrison County only). Few state censuses are available. Vital Records Birth and death records were began on a county basis for Indiana in 1882. State level registration began for births in October, 1907, and in January, 1900 for deaths. Marriage records have been mandatory on a county level since before 1800. For birth records before 1907, death records before 1900, and for marriage records, write to the county clerk of the county in question. For birth records after 1907 and death records after 1900, write: Indiana State Department of Health Vital Records Section 2 North Meridian Street Indianapolis, IN 46204