Who was the founder of the sports league Mirtha Marrero played in?
Mirtha Marrero Mirtha Marrero [Fernández] is a former pitcher who played from 1948 through 1953 in the All-American Girls Professional Baseball League. She batted and threw right handed.
St. Louis Soccer League The St. Louis Soccer League was based in St. Louis, Missouri and existed from 1907 to 1938. At its founding, it was the only fully professional soccer league in the United States.