Dearborn County, Indiana suffered a courthouse fire on 6 March 1826 that destroyed all records.

Records of the Board of Commissioners to Perpetuate Testimony:

• Volume AA – Deeds – Index
• Volume BB – Deeds – Index
• Volume CC – Deeds and Estates – Deed Index and Estate Abstracts
• Volume D – Order Book of Perpetuated Testimony – Details the day to day work of the board. Records were brought before the board and proved by witnesses. If proven, they were recorded in Volumes AA, BB, and CC. The book is organized by number of the deed recorded in Volumes AA, BB, and CC.