Answer:

HANNA

AnswerCrossword Clue
HANNABarbera's partner
HANNABarbera's business partner
HANNACo-creator of "Tom and Jerry"
HANNABarbera's cartooning partner
HANNABarbera's partner in animation
HANNABig name in animation
HANNACo-creator of Yogi, Quick Draw, et al.
HANNACo-creator of Yogi and Boo Boo
HANNABarbera's cartoon-production partner
HANNAFred Flintstone's co-creator
HANNAYogi Bear co-creator William
HANNAYogi Bear's co-creator
HANNAOne of Yogi Bear's "parents"
HANNAMagilla Gorilla co-creator
HANNACofounder of the company that created "Yogi Bear"
HANNACoproducer of "The Flintstones" and "The Jetsons"
HANNAHuckleberry Hound cocreator
HANNAMcKinley adviser Mark ....
HANNABarbera's colleague
HANNAFlintstones animator
HANNABarbera's cartoon colleague
HANNABarbera's cartoon partner
HANNAFlintstones co-creator
HANNAYogi Bear co-creator
HANNABarbera's animation partner
HANNAJoe Barbera's partner
HANNAAnimator William
HANNAPresident McKinley's mentor.
HANNAPolitician of McKinley's day.
HANNAFamous name in Ohio politics.
HANNAHe backed McKinley.
HANNAPres. McKinley's influential adviser.
HANNAPolitical leader of 1900.
HANNAMark of McKinley's day.
HANNAMark ... of political fame.
HANNATurn-of-the-century politician.
HANNA19th century party boss.
HANNAMan behind McKinley, 1896.
HANNAMcKinley's campaign manager, 1896.
HANNAMcKinley's political mentor.