They're not in alphabetical order, but are instead in the order in which they were discovered (the actual order, starting from Saturn, is -- D, C, B, A, F, G and E). A and B are the two brightest rings, and B is the widest and thickest of the six rings.
Philadelphia Baseball Wall of Fame. From Wikipedia, the free encyclopedia. Viewing the length of the Phillies Wall of Fame, Citizens Bank Park. The Philadelphia Baseball Wall of Fame is a collection of plaques, mounted on a brick wall in the Ashburn Alley section of Citizens Bank Park, the ballpark of the Philadelphia Phillies.
1 Ken Griffey Jr. was elected to the National Baseball Hall of Fame on Wednesday, Jan. 6, 2016 along with Mike Piazza, becoming members 311 and 312 of the Cooperstown shrine.  Griffey and Piazza were inducted on July 24 in Cooperstown as the Class of 2016 as part of the July 22-25 Hall of Fame Weekend.