Negro Leagues — Andscape
CityStream: Steelheads Alley resurrects Seattle's baseball glory
African American professional baseball debuts in Seattle on June 1
Beloit grad and official MLB historian on Negro Leagues re-designation
MLB — Andscape
MLB x Negro League Baseball (Homestead Grays x Pirates 7/24
The Rich History of Cuban Baseball – Ebbets Field Flannels
Red Sox, Nationals, A's among MLB teams commemorating Juneteenth
CityStream: Steelheads Alley resurrects Seattle's baseball glory
Wayback Machine: Seattle Steelheads' short life - Sportspress
Mariners unveil City Connect uniforms with nods to Seattle's rich
MLB and MiLB Teams Plan Throwbacks for Juneteenth