Mamie 'Peanut' Johnson
"Female Negro Leaguer"

I sent a request to Mamie Johnson asking her to tell the story on a baseball about what it was like to be a female playing in the Negro Leagues and how she got her nickname of Peanut and this is what I got:

"It was a great time for me. To know I was good enough to be with some of the greatest ball players that ever picked up a bat"
"[She got the nickname by] striking out the person who said I wasn't big as a peanut."

Here is a neat article about her. Here is another and you can download an audio file of her interview.