Probate Order Books contain the daily actions of the Probate Court. Actions include letters of administration (no will) or testamentary (will found), administrator and executor’s bonds, guardianships for minor heirs, partitions of land, estate sales, widow’s dowers, disputes between heirs, lawsuits brought by creditors, and more.
The following table details probate order books available for Union County, Indiana. Links to indexes available on Indiana’s Gore are given when available.
These volumes have been all digitized by Ancestry. They are available on microfilm from the Indiana State Library and Family History Library.
See Union County Probate Records for other records.
| Book | Index |
| Probate Order Book A, 1821-1831 | 1821-1852 Index |
| Probate Order Book B, 1831-1842 | 1821-1852 Index |
| Probate Order Book C, 1842-1845 | 1821-1852 Index |
| Probate Order Book D, 1846-1852 | 1821-1852 Index |
| Probate Order Book 1, 1853-1863 | 1853-1877 Index |
| Probate Order Book 2, 1863-1871 | 1853-1877 Index |
| Probate Order Book 3, 1871-1877 | 1853-1877 Index |
| Probate Order Book 4, 1877-1881 | 1877-1887 Index |
| Probate Order Book 5, 1882-1885 | 1877-1887 Index |
| Probate Order Book 6, 1885-1887 | 1877-1887 Index |
| Probate Order Book 7, 1887-1890 | 1887-1897 Index |
| Probate Order Book 8, 1890-1892 | 1887-1897 Index |
| Probate Order Book 9, 1892-1895 | 1887-1897 Index |
| Probate Order Book 10, 1895-1897 | 1887-1897 Index |
| Probate Order Book 11, 1897-1898 | 1897-1905 Index |
| Probate Order Book 12, 1899-1900 | 1897-1905 Index |
| Probate Order Book 13, 1901-1903 | 1897-1905 Index |
| Probate Order Book 14, 1903-1905 | 1897-1905 Index |
| Probate Order Book 15, 1905-1910 | 1905-1918 Index |
| Probate Order Book 16, 1910-1915 | 1905-1918 Index |
| Probate Order Book 17, 1915-1918 | 1905-1918 Index |