
The Library of Congress has digitized its collection of Baseball Cards 1887–1947 and has online bibliographies of their collection on baseball, including a page for kids.
Anything as American as baseball captures the attention of our government. Winning teams and players are regularly recognized by the White House, and the U.S. government has passed laws and held hearings that have had a strong impact on the sport. Baseball has also come before the Supreme Court, most notably in the 1922 decision that exempted Major League Baseball from antitrust laws and in the 1972 Curt Flood decision that further allowed owners to control the player market.
Examples of government forays onto the playing field include:
Laws
Major League Baseball Reform Act of 1995
Y 1.1/5: 104-231
Baseball Fans and Communities Protection Act
Y 1.1/8: 103-871
Hearings

Baseball’s Revenue Gap: Pennant for Sale?
Y 4.J 89/2: S. Hrg. 106-1045
Professional Baseball Teams and the Antitrust Laws
Y 4.J 89/2: S.Hrg. 103-1054
Stadium Financing and Franchise Relocation
Y 4.J 89/2: S. Hrg. 106-484
The Key Issues Confronting Minor League Baseball
Y 4.SM 1: 103-95
For Kids
Rookie League Baseball: How to Give Youngsters a Head Start
HH 1.6/3: R 67
Smokey’s Fire Prevention Baseball Activity Book
A 13.2: Sm 7/16