The daily syndicated comic strip Dennis the Menace was originally
created, written and illustrated by Hank Ketcham. It debuted in 16
newspapers and was distributed by Post-Hall Syndicate. It is now
written and drawn by Ketcham’s former assistants, Marcus Hamilton
and Ron Ferdinand, and distributed to at least 1,000 newspapers 
in 48 countries and in 19 languages by King Features Syndicate,
usually running a single panel on weekdays and a full strip on
Sundays.   

Hank Ketcham (left) pictured with Richard Nixon