Norman Leroy Siebern was an American professional baseball player and scout. He appeared in 1,406 games over a 12-year career in Major League Baseball as a first baseman and left fielder for the New York Yankees, Kansas City Athletics, Baltimore Orioles, California Angels, San Francisco Giants and Boston Red Sox between 1956 and 1968. A two-time World Series champion and four-time American League All-Star, his best season came in 1962 with the Athletics when he hit 25 home runs, with 117 runs batted in and a .308 batting average. He might be most remembered, however, as being one of the players the Yankees traded for Roger Maris on December 11, 1959.
Norm Siebern
History of the Oakland Athletics
The history of the Athletics Major League Baseball franchise spans the period from 1901 to the present day, having begun as a charter member franchise in the new American League in Philadelphia before moving to Kansas City in 1955 for 13 seasons and then to the San Francisco Bay in Oakland, California, in 1968. The team endured numerous attendance issues stemming from the aging Oakland Coliseum before the MLB owners approved the team's application to relocate to Las Vegas, Nevada in 2023. With four locations, the A's have had the most homes of any MLB team.
The Athletics played at Municipal Stadium during their time in Kansas City.
Leo Posada with the 1961 Athletics
Yankees vs. Athletics at Municipal Stadium
Rocky Colavito 1964 Kansas City Athletics Spring Training