Dropping out of high school, Mendelsohn joined the Navy and after World War II, he contributed gag cartoons to The Saturday Evening Post and other magazines.
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An Emmy-nominated television comedy writer and story editor, he has numerous credits as a TV scripter, including Rowan & Martin's Laugh-In, Three's Company, The Carol Burnett Show and Teenage Mutant Ninja Turtles.
His work was an influence on cartoonist Jack Mendelsohn, the creator of Jackys Diary, and animation director Will Finn.
Jack Kerouac | Jack Nicholson | Jack Nicklaus | Jack the Ripper | Jack London | Jack Kemp | Jack Kirby | Jack Lemmon | Jack Black | Jack Abramoff | Jack Dempsey | Jack Benny | Jack White | Wolfman Jack | Union Jack | Jack White (musician) | Jack and the Beanstalk | Jack Johnson | Jack Charlton | Jack Palance | Jack Daniel's | Jack | Jack Paar | Jack Layton | Jack Straw | Jack Vance | Jack Bruce | Jack Warden | Jack's Mannequin | Jack in the Box |