Hey John I got a small something for you!

[Sogturtle]

...A quote from Hugh Harman regarding the MGM mystery toons of 1939-40.

"At MGM, Freleng had been there earlier and I wanted to keep him on my staff as a director because he was so competent... He was very dependable and fine but he couldn't get along with the business management at MGM - they made promises they didn't keep so he left. But he did direct a few pictures for me ."

[J Lee]

Ah ha! The possible smoking gun. We already know Friz did "The Bookworm," hopefully, your inside source can ID a few more of those cartoons (though as we've mentioned, it isn't hard to guess which ones at least a couple of them are...)