Mary Lou Studnicka [Brazauskas, Caden] (July 19, 1931 – November 21, 2014) was an American overhand pitcher who played from 1951 through 1953 in the All-American Girls Professional Baseball League.

While playing in a Chicago park with the boys teams, Studnicka met a coach that developed players for the All-American Girls Professional Baseball League.

After that, she spent six years in the Chicago farm club until receiving a letter and a contract telling her to report for spring training and the salary she would be getting.

At the age of 19, Studnicka joined the Grand Rapids Chicks for the 1951 season, as part of a pitching rotation that included Mildred Earp, Earlene Risinger and Connie Wisniewski.

[2][3][4] The Grand Rapids Chicks, with Woody English at the helm, faced their nemesis Rockford Peaches in the first round of the playoffs in a best-of-three series.

[5] In the final series, The Grand Rapids Chicks swept the Kalamazoo Lassies in the best of three game set, by the scores of 5–2 and 4–1.

She struck out Isabel Alvarez for the first out, retired Dorothy Schroeder with a pop fly to shortstop Ziegler, and beat June Peppas with a sharp grounder to second basewoman Dolores Moore who threw to Voyce at first base for the final out of the game.