They also raise questions about who is remembered and why.
The St. Louis Cardinals' great hitter Stan Musial was one of those stars who dominated his era in the 1940s and 1950s, and yet is almost forgotten today, even among baseball fans. Mention baseball in the 1940s and 1950s, and the names that come to mind immediately are Ted Williams and Joe DiMaggio.
Yet Stan Musial had a higher lifetime batting average than Joe DiMaggio -- and Hank Greenberg hit more home runs in a season, and had more runs batted in, than either Williams or DiMaggio.
Maybe the reason for the difference is that it is easier to remember some things when they are associated with other things. Ted Williams was the last .400 hitter and Joe DiMaggio's 56-game hitting streak is a record that may never be broken.
There are no similarly spectacular records associated with Hank Greenberg or Stan Musial. Greenberg hit 58 home runs in a season, so that two more would have tied Babe Ruth's record at the time. Greenberg also had 183 runs batted in, just one short of Lou Gehrig's American League record. But close only counts when pitching horseshoes or throwing hand grenades.
Mark Kurlansky's biography says in its preface, "Hank Greenberg was a baseball player who hit a lot of home runs before most of us were born." But not all of us. The longest home run I ever saw was hit by Hank Greenberg, deep into Yankee Stadium's 3rd deck, back when it was 415 feet down the left field foul line.
The book about Musial is titled "Stan Musial: An American Life" by George Vecsey. It is more about his life than about baseball. In it, Musial recalls that, back in his childhood, creating mischief far from his own neighborhood was still risky, because relatives who lived in other neighborhoods would not hesitate to grab you and spank your behinds.
Ah, but we are so much more enlightened today -- or are we? Will anyone ever call us "the greatest generation"?
The cover of the recent book about Louis, by Randy Roberts, simply says "Joe Louis" -- a name with enormous impact in his era. It too is more about the life of the man, and the great but forgotten role he played in the history of American race relations.
Joe Louis was the first black hero of white Americans, as well as black Americans. The dignity and sportsmanship with which he conducted himself had much to do with changing the image of black people in general, and eventually opening many doors for them.