Jonas Whitmore was an American drifter who was executed by the state of Arkansas in May 1994.  For the first time since the death penalty was reinstated in 1976, Whitmore and Edward Charles Pickens were both put to death via lethal injection on the same day.
This is the only Whitmore piece we have ever seen.

Greeting card with a handwritten letter on the inside hand signed, Jonas.
Includes the prison stamped mailing envelope hand signed, Mr. J.H. Whitmore, with his and the recipient's complete names and addresses written by Whitmore.

Jonas Whitmore Handwritten Card And Envelope Set Both Signed