A native of Humboldt, George Sweatt was second baseman from 1922 to 1927 for the Kansas City Monarchs and the Chicago American Giants in the Negro National League. The Monarchs won the first World Series of the Negro League in 1924, the same year Walter Johnson won the World Series with the Washington Senators. In the mid-1970s this park was named in honor of Sweatt, and a plaque about him and his career is mounted on a large boulder just beyond left field. Displays about his life are at the Humboldt Historical Museum, 416 N. 2nd.