Gerry davis hi-res stock photography and images - Alamy
Little League® International Applauds Umpire Gerry Davis on His Milestone Achievement - 5,000th MLB Game - Little League
MLB umpire Wally Bell dead at 48 – troyrecord
Some 10 umpires reportedly to opt out of shortened MLB season - The Boston Globe
Fox Valley resident Davis among 5 retiring MLB umpires
Umpire (baseball) - Wikipedia
Veteran MLB Umpire and World Series Crew Chief Gerry Davis Joins Little League® Volunteer Umpire Advisory Committee - Little League
Little League® International Applauds Umpire Gerry Davis on His Milestone Achievement - 5,000th MLB Game - Little League
Baseball Umpires in 1921 – Society for American Baseball Research
World Series umpiring crew includes Gerry Davis, Joe West - NBC Sports