Will Books contain transcribed wills that have been accepted into probate. Additional details about the estate may be found in the probate order books, complete record books, and probate packets. See the Union County Probate Records page to learn more.
The following table details will books available for Union County, Indiana.
These volumes have been all digitized by Ancestry. They are available on microfilm from the Indiana State Library and Family History Library.
| Book | Index |
| Will Book 1, 1821-1828 Note: Estate inventories start at page I-1 after page 74 of the wills. Inventories I-121 to I-136 come between pages 22 and 23 of wills. |
Index |
| Wills from 1828 to 1845 are located in the Probate Complete Record Books | Index |
| Will Book A, 1845-1872 | Index |
| Will Book B, 1873-1889 | Index |
| Will Book C, 1890-1901 | Index |
| Will Book D, 1901-1920 | Index |
| Will Book E, 1920-1932 | Index |