The Great Philadelphia Fan Book by Glen Macnow and Anthony Gargano, offers a great insight into the psyche of the Philadelphia Fan in this excerpt:
Through the 1920s, booing remained our little secret. There were no outside reporters of the Michael Wilbon ilk to label us America's nastiest fans. But that all ended when the A's hosted the St. Louis Cardinals for Game 2 of the World Series on October 2, 1930.
Among the 32,000 fans on hand that sunny afternoon was President Herbert Hoover, looking for a few hours of escape from the gloomy economic news of the time. In those days—despite the Depression and Prohibition—heckling a president was unheard of. But as Hoover's limousine drove onto the field near third base, the murmurs began. And when Hoover stepped onto the field and tipped his top-hat, the crowd, let loose.
From everywhere in the park the boos came,said Horvitz.I never heard such booing in my life. Then they started yelling,We want beer.It reverberated over the whole park.
Just started reading the book. So far, so good.