| YEAR | EVENT |
| 1827 | Adams New Purchase (eliminated 1844) from Delaware New Purchase |
| 1835 (1836) | Adams County from Allen, Delaware and Randolph |
| 1824 | Allen from Delaware New Purchase and unorganized |
| 1821 | Bartholomew from Delaware New Purchase |
| 1840 | Benton from Jasper |
| 1838/1839 | Blackford from Jay |
| 1830 | Boone from Wabash New Purchase (Hendricks) and Adams New Purchase (Hendricks
and Marion) |
| 1836 | Brown from Bartholomew, Jackson and Monroe |
| 1828 | Carroll from Adams New Purchase (Hamilton), Wabash New Purchase, (Fountain) and unorganized |
| 1829 | Cass from unorganized (Carroll) |
| 1801 | Clark from Knox |
| 1825 | Clay from Owen, Putnam, Vigo and Sullivan |
| 1830 | Clinton from Adams New Purchase (Tippecanoe) |
| 1818 | Crawford from Harrison, Orange and Perry |
| 1817 | Daviess from Knox |
| 1835/1837 | De Kalb from unorganized (Allen and LaGrange) |
| 1803 | Dearborn from Clark |
| 1822 | Decatur from unorganized |
| 1820 | Delaware New Purchase (name changed to Adams New Purchase, 1827) unorganized, Fayette, Franklin, Jackson, Jennings, Randolph, Ripley, Wayne, Bartholomew |
| 1827 | Delaware from Delaware New Purchase (Randolph) |
| 1818 | Dubois from Pike |
| 1830 | Elkhart from unorganized (Cass/Allen) |
| 1819 | Fayette from Franklin, Wayne and unorganized territory |
| 1819 | Floyd from Clark and Harrison |
| 1826 | Fountain from Montgomery, Wabash New Purchase and Parke |
| 1811 | Franklin from Clark and Dearborn |
| 1835/1836 | Fulton from unorganized (Cass, Elkhart and St. Joseph) |
| 1819 | Gibson from Knox |
| 1831 | Grant from Adams New Purchase (Randolph, Delaware, Madison and unuorganized (Cass) |
| 1821 | Greene from Sullivan and unorganized (Daviess) |
| 1823 | Hamilton from Delaware New Purchase |
| 1827/1828 | Hancock from Madison |
| 1808 | Harrison from Clark and Knox |
| 1824 | Hendricks from Delaware New Purchase and Wabash New Purchase |
| 1822 | Henry from Delaware New Purchase |
| 1846 | Howard - name changed from Richardsville |
| 1832/1834 | Huntington from Adams New Purchase (Allen and Grant) |
| 1816 | Jackson from Clark, Jefferson and Washington |
| 1835/1838 | Jasper Wabash New Purchase and unorganized (Warren and White) |
| 1835/1836 | Jay from Adams New Purchase (Delaware and Randolph) |
| 1811 | Jefferson from Clark, Dearborn and Knox |
| 1817 | Jennings from Jackson and Jefferson |
| 1823 | Johnson from Delaware New Purchase |
| 1790 | Knox from unorganized (Indiana County in 1816) |
| 1835/1836 | Kosciusko from unorganized (Cass, Elkhart and Grant) |
| 1832 | La Porte from St. Joseph and unorganized |
| 1832 | LaGrange from unorganized (Allen/Elkhart) |
| 1836/1837 | Lake from Porter and Newton |
| 1818 | Lawrence from Orange |
| 1823 | Madison from Delaware New Purchase and Marion |
| 1822 | Marion from Delaware New Purchase |
| 1835 | Marshall from unorganized (Cass, Elkhart and St. Joseph) |
| 1820 | Martin from Daviess andDubois |
| 1832 | Miami from Cass and unorganized territory |
| 1818 | Monroe from Orange |
| 1823 | Montgomery from Wabash New Purchase, Parke, and Putnam |
| 1822 | Morgan from Delaware New Purchase and Wabash New Purchase |
| 1835 | Old Newton from unorganized (St. Joseph, Warren and White) eliminated in 1839 |
| 1859 | Newton from Jasper |
| 1835/1836 | Noble from unorganized (Allen, Elkhard and LaGrange) |
| 1844 | Ohio from Dearborn |
| 1816 | Orange from Gibson, Knox and Washington |
| 1819 | Owen from Daviess and Sullivan |
| 1821 | Parke from Vigo, unorganized and Wabash New Purchase |
| 1814 | Perry from Gibson and Warrick |
| 1817 | Pike from Gibson, Knox and Perry |
| 1835/1836 | Porter from unorganized (St. Joseph) |
| 1814 | Posey from Warrick, Knox and Gibson |
| 1835/1836 | Pulaski from unorganized (Cass and White) |
| 1822 | Putnam from Owen, Vigo and Wabash New Purchase |
| 1795 | Old Randolph from St. Clair-NW Territory became Illinois Territory in 1809 |
| 1818 | Randolph from Wayne |
| 1822 | Richardsville from unorganized (Carroll, Cass and Miamu) name changed to Howard in 1846 |
| 1816/1818 | Ripley from Dearborn, Jefferson and Jennings |
| 1822 | Rush from Delaware New Purchase |
| 1790 | St Clair from Indiana Territory became Illinois Territory in 1809 |
| 1830 | St. Joseph from unorganized (Carroll, Tippecanoe, and Cass) |
| 1820 | Scott from Clark, Jackson, Jefferson, Jennings and Washington |
| 1822 | Shelby from Delaware New Purchase |
| 1818 | Spencer from Perry and Warrick |
| 1835/1850 | Starke from St. Joseph, unorganized (Starke, Cass and White) |
| 1835/1837 | Steuben from unorganized (LaGrange) |
| 1817 | Sullivan from Knox |
| 1814 | Switzerland from dearborn and Jefferson |
| 1826 | Tippecanoe from Wabash New Purchase and unorganized |
| 1844 | Tipton from Adams New Purchase and unorganized (Cass, Hamilton and Miamu) |
| 1821 | Union from Fayette, Franklin and Wayne |
| 1818 | Vanderburgh from Gibson, Posey, and Warrick |
| 1824 | Vermillion from Parke, unorganized and Wabash New Purchase |
| 1818 | Vigo from Sullivan |
| 1832/1835 | Wabash from Adams New Purchase (Grant) and unorganized (Cass) |
| 1820 | Wabash New Purchase from unorganize, Monroe, Owen, Vigo and Parke |
| 1827 | Warren from Wabash New Purchase, Fountaiin and unorganized (Vermillion) |
| 1813 | Warrick from Knox |
| 1814 | Washington from Clark and Harrison |
| 1811 | Wayne from Clark, Dearborn and Knox. "Wayne County, NW Territory, was formed in 1796 from territorial Knox county and unorganized area. This included portions of modern Illinois, Michigan, Ohio, and Wisconsin. Wayne County outside NW Territory was eliminated in 1800. In 1803 Wayne County, Indiana Territory was created from territorial Knox and St. Clair County and unorganized area. This included parts of today's Illinois, Indiana, Wisconsin, and most of Michigan. In 1811 Wayne County, Indiana Territory, was created from Clark, Dearborn, and Knox counties. This became an Indiana state county in 1816."[Ancestry's Red Book] |
| 1835/1837 | Wells from Adams New Purchse (Allen, Delaware and Randolph) |
| 1834 | White from Wabash New Purchase (Carroll) |
| 1835/1838 | Whitley from unorganized (Allen, Elkhart and Grant) and Huntington |
Data extracted from Ancestry's Red Book: American State, County & Town Sources Edited by Alice Eichholz, Ph.D., C.G.
Additions and Corrections should be sent to Becky Bonner.
Last Updated: September 5, 2001
Becky Bonner E-Mail Address: [email protected]