Just when did Jack Benny first appear on the radio?

One of the things I like about writing the blog is finding out things not generally known, or better yet, refuting things that are suppoosed "known" facts..

     One of these assumptions is that Jack Benny began his radio career as a guest of Ed Sullivan on a show in New York on March 29, 1932..His first words were documented as "Hello, this is Jack Benny. Now there will be a slight pause while you say, who cares?"

In recent days, friend Don M. Yowp, whom we have mentioned here before because of his vintage Hanna-Barbera Blog, has started "Tralfaz" a second blog for more of his general entertainment Interests:
Jack Benny On The Air, 1931

Yowp writes about an earlier Benny appearance on RKO Theater of The Air September 4, 1931 on WIBA Madison, Wisconsin.

I thought I'd look around the Plain Dealer Archive to find anything sooner, not really thinking I would..Surprisingly, I came up with a Monday January 20, 1930 Broadcast on WHK-1390 Cleveland at 7:30 PM called "Voices From Filmland"

This appears to be a early Columbia/CBS Radio series on until at least March 1930..According to JJ's Radio log website, this was also on KHJ-930 Los Angeles and WABC-860 New York..
Mr. Benny was on either Radio or TV regularly from 1932-65, with periodic NBC specials until his death in December 1974.

Ms. Laura Leff, a fan of Jack Benny since 10 years of age, runs some facets of the Jack Benny Estate and is head of the International Jack Benny Fan Club.. International Jack Benny Fan Club
International Jack Benny Fan Club