There’s a website (tobaccodocuments.org) dedicated to information related to the tobacco company litigation of the past several years. Oddly enough, one of the documents on the site is a radio script of the Al Pearce Show from April 11, 1941, with Leon Schlesinger as guest! Since the show had Mel Blanc and Arthur Q. Bryan as regulars, they also presented “the first radio showing of ‘The Wild Hare’”(sic). Check out image scans of the script here.
Thanks to Eric Wilson for the link.