KAUFFMAN STADIUM, home of the Kansas City Royals, will become the hub of Major League Baseball in July when it hosts the All-Star Game for the first time since 1973, the year it opened. And Bob Kendrick is hoping the attendant swirl of publicity will extend to the Negro Leagues Baseball Museum, about seven miles away at the fabled intersection of 18th and Vine Streets.

Mr. Kendrick, the museum’s president and executive director, is assembling a special exhibition at the museum this summer to draw some of the game’s expected crush of out-of-town visitors.

The museum exhibition will highlight the careers of several Negro Leagues players — Hank Aaron and Willie Mays among them — who went on to become big-league all-stars during Major League Baseball’s period of gradual racial integration between 1947 and 1959. (“What we’ve found is that they made a tremendous impact on the game right away,” Mr. Kendrick said.)...