Lou Klein was a professional baseball player who played for several teams during his career. He was born on September 26, 1918, in Wichita, Kansas. Klein started his baseball career in the minor leagues in 1937, playing for the Wichita Aviators. He played for several minor league teams before making his major league debut in 1943 with the St. Louis Browns.

Klein played for the Browns for four seasons before being traded to the Boston Red Sox in 1947. He played for the Red Sox for two seasons before being traded to the Chicago Cubs in 1949. Klein played for the Cubs for six seasons, from 1949 to 1954, and was known for his defensive skills at second base.

In 1955, Klein was traded to the Cincinnati Reds, where he played for two seasons before being traded to the Milwaukee Braves in 1957. He played for the Braves for one season before being traded back to the Cubs in 1958. Klein played for the Cubs for one more season before retiring from baseball in 1959.

During his career, Klein had a batting average of .249, with 28 home runs and 316 RBIs. He was known for his defensive skills, winning the National League Gold Glove Award at second base in 1952. Klein was also known for his versatility, playing multiple positions throughout his career.

After retiring from baseball, Klein worked as a scout for several teams, including the Cubs, the Baltimore Orioles, and the Houston Astros. He was inducted into the Wichita Sports Hall of Fame in 1989.

Overall, Lou Klein had a successful career as a professional baseball player, playing for several teams and earning recognition for his defensive skills. He continued to contribute to the sport after retiring, working as a scout for several teams.