When did mary fields kill a man for hitting her?

Mary Fields, also known as "Stagecoach Mary," was involved in a notable incident in 1868 when she shot a man named D.P. McGowan. This altercation occurred after McGowan reportedly struck her, leading Fields to defend herself. She was arrested but later acquitted, as the jury deemed her actions justified. Fields is remembered for her fierce spirit and resilience, becoming one of the first African American women to work as a mail carrier in the United States.