Does anyone know which episode of Dennis the Menace was Joseph Kearns last before his death?

I believe episode 099 "Wilson Goes to the
Dentist" was the last episode with Joseph Kearns as George Wilson. It first aired on April 29, 1962.

A great site with all episodes available for trade or sale is:

http://dennisthemenacetv.homestead.com/

A page devoted to the talented Joseph Kearns is located here:

http://www.dougmacaulay.com/kingspud/sel_by_actor_index_2.php?actor_first=Joseph&actor_last=Kearns