Backyards to Ballparks by Eric C. Gray - Ebook
Vendi Vidi Vici: An Interview with Hal the Hot Dog Guy
Meet Oakland Athletics' 'Hal the Hot Dog Guy,' the team's unofficial mascot
Hal the Hot Dog Vendor Helps Out-of-Work Ballpark Vendors
Hal of Fame – News-Herald
Oakland A's hot dog hawker a fan favorite
Elvis Costello on His and Burt Bacharach's Collaborative Boxed Set
Best Specialty Hot Dog 2011, Biker Jim's Gourmet Hot Dogs, Best of Denver®, Best Restaurants, Bars, Clubs, Music and Stores in Denver
Ballpark Hot Dogs
Baseball Stadium Food Vendors Still Out of Work Even as Fans Return
Derek Jeter Elected to Baseball Hall of Fame: Yankees React
Wrigley Field - Wikipedia
Hal the Hot Dog Guy
People of the U: Trenda McGinnis - University of Mississippi Medical Center
Wanna Be a Hot Dog Vendor? It Ain't Easy - Gothamist