Maggie Brown was raised in Independence, Missouri, and graduated from Southwest Missouri State University. After moving to New York City, she worked in theater as a performer with Time & Space, Ltd. theatre company, and as Director of Children's Theatre at the Manhattan Theatre Club. As an acting teacher, she taught at the New York Association for the Blind, where she directed several Lighthouse Players productions, including The Little Foxes.
Her first script, Sophisticated Nuts and Dried Fruit (1982), was produced in Los Angeles as three one-act plays, and staged in 2001 at Eastern Connecticut State University. Kenn Salmon and herself are co-authors of plays: Pat the Cat's Last Fling (1990) and Country Songbird with Wife.
As of 2011 and since writing Twelve Angry Jurors, Brown has performed with The Old Pros Theatre Group, a troupe of retired actors, musicians and dancers who stage productions for the Laguna Woods Village retirement community in Laguna Woods, California.
- "Sophisticated nuts and dried fruit > Type of Work: Dramatic work and accompanying music; Registration Number / Date: PAu000449788 / 1982-10-25; Copyright Claimant: Maggie Brown 1948-". CopyrightEncyclopedia.com. Retrieved August 22, 2012.
- "Maggie Brown". Eastern Connecticut State University Performing Arts Department: Guest Artists. 2001, n.d. Archived from the original on May 28, 2010. Retrieved August 22, 2012. Check date values in:
- Van Houten, Ellen (January 4, 2012). "Old Pros to hold auditions for ‘Morning's at Seven'". Laguna Woods Globe via The Orange County Register. Archived from the original on August 23, 2012. Retrieved August 22, 2012.
- "Pat the cat's last fling > Type of Work: Dramatic work and accompanying music; Registration Number / Date: PAu001374018 / 1990-05-02; Copyright Claimant: Maggie Brown 1948- & Kenn Salmon 1941-". CopyrightEncyclopedia.com. Retrieved August 22, 2012.
- "About" at The Old Pros (official site)