Waterloo White Hawks

The Waterloo White Hawks, based in Waterloo, Iowa, played in the Three-I League (the Illinois-Indiana-Iowa League) from 1940 to 1942 and from 1946 to 1956 as a Chicago White Sox affiliate, with home games at Riverfront Stadium on the Cedar River. The city had first entered the Three-I in 1910 with the Waterloo Boosters, gone without a team from 1912 through 1937, then returned as the Red Hawks in 1938. The White Hawks era that followed produced both the city's only Three-I championship and some of the finest young talent to pass through any Class B roster in the postwar decade.

The 1947 White Hawks won the Three-I championship under manager Jack Onslow, drawing a club-record 174,000 fans in the process, and Onslow was promoted to manage the big league White Sox the following year. In 1954 Hall of Famer Luis Aparicio played 94 games at shortstop, batting .282 and making the Three-I All-Star second team despite a hernia-shortened season. His teammate that year, catcher Earl Battey, won the Three-I Rookie of the Year award and later caught for the 1965 American League champion Minnesota Twins. The 1955 White Hawks featured Norm Cash, who won the 1961 AL batting title with a .361 average for the Detroit Tigers; Barry Latman, a 1961 AL All-Star for Cleveland; and manager Willard Marshall, himself a two-time National League All-Star who had hit 36 home runs for the New York Giants in 1947.

The White Sox ended their Waterloo working agreement after the 1956 season, and the White Hawks identity ended with it. Waterloo returned to professional baseball in 1958 under a different name and affiliation, and the city hosts the summer collegiate Waterloo Bucks of the Northwoods League today.