“Diamond” Jim Purcell was the Chief of Police in Portland

Portland, Oregon

Portland is a city located in the Pacific Northwest, near the confluence of the Willamette and Columbia rivers in the U.S. state of Oregon. As of the 2010 Census, it had a population of 583,776, making it the 29th most populous city in the United States...

, Oregon

Oregon

Oregon is a state in the Pacific Northwest region of the United States. It is located on the Pacific coast, with Washington to the north, California to the south, Nevada on the southeast and Idaho to the east. The Columbia and Snake rivers delineate much of Oregon's northern and eastern...

 during the 1950s.

Purcell was an associate of Jim Elkins, a Portland mob boss

Organized crime

Organized crime or criminal organizations are transnational, national, or local groupings of highly centralized enterprises run by criminals for the purpose of engaging in illegal activity, most commonly for monetary profit. Some criminal organizations, such as terrorist organizations, are...

, and helped protect Portland's pinball

Pinball

Pinball is a type of arcade game, usually coin-operated, where a player attempts to score points by manipulating one or more metal balls on a playfield inside a glass-covered case called a pinball machine. The primary objective of the game is to score as many points as possible...

 racket and other organized crime activity in the city. In this regard, Purcell was not unique among public servants in Portland, many of whom did business with the highly-influential Elkins.

The character of Diamond Joe Quimby, mayor of the fictional town of Springfield

Springfield (The Simpsons)

Springfield is the fictional town in which the American animated sitcom The Simpsons is set. A mid-sized town in an undetermined state of the United States, Springfield acts as a complete universe in which characters can explore the issues faced by modern society. The geography of the town and its...

 on the television show The Simpsons

The Simpsons

The Simpsons is an American animated sitcom created by Matt Groening for the Fox Broadcasting Company. The series is a satirical parody of a middle class American lifestyle epitomized by its family of the same name, which consists of Homer, Marge, Bart, Lisa and Maggie...

, created by Portland native Matt Groening

Matt Groening

Matthew Abram "Matt" Groening is an American cartoonist, screenwriter, and producer. He is the creator of the comic strip Life in Hell as well as two successful television series, The Simpsons and Futurama....

, is loosely based on Purcell.