If you were interested in yesterday's post about how stories are written at cartoon studios, there is a really fun behind-the-scenes- interview with one of the storyboard artists/writers at WB in the 1940s at Mike Barrier's site.
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Lloyd Turner was in Art Davis' crew and later worked for Bob Clampett on Time For Beany.
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http://www.tvsquad.com/2007/01/13/full-episode-of-time-for-beany-video/
He went on to Rocky and Bullwinkle and other Jay Ward cartoons.
He also wrote many live action sitcoms, including The Jeffersons, All In The Family and Mork and Mindy - unless there were 2 writers named Lloyd Turner!
Anyway, read the interview and you'll get a real feel of how they go about writing cartoons, with all the dirt and studio politics involved!