September 3rd
- 1778 – William Poage died, aged ~43.
- 1836 – Thomas Z. Morrow born.
- 1843 – Andrew Jackson Smith born.
- 1858 – Chilton Allan died, aged 72.
- 1867 – Thomas E. Bramlette left office as Governor of Kentucky.
- 1867 – John L. Helm entered office as 24th Governor of Kentucky.
- 1880 – Jesse James and Bill Ryan robbed a stagecoach near Mammoth Cave.
- 1998 – Cave Hill National Cemetery listed on National Register of Historic Places.