Marsha Jean Falco, Founder of Set Enterprises, Inc., invented her first game, SET^®, in 1974 while doing genetic research in Cambridge, England. Marsha received her M.S. in Population Genetics from Michigan State University and her B.S. in Animal Science from Arizona State University.

The idea for the SET game came when Marsha was trying to understand whether epilepsy in German Shepherds was inherited.  To track the individual traits of the dogs, Marsha created file cards with blocks of information for each dog.  Because certain blocks of information were the same for many dogs, she drew symbols to represent the information rather than writing out the data each time.  Different symbols with different properties represented different traits.  While explaining the mathematical properties behind the combinations on the file cards to the veterinarians, Marsha saw the fun in finding the different combinations and SET was born.  Over the years, Marsha refined the game by playing with her family and friends and it was finally released in 1990.

Marsha continues to develop unique games each spanning various styles of gameplay. Her other games include: Five Crowns^®, Quiddler^®, Karma^®, WordSpiel^® and Zangle^®. Marsha expanded on some of her fans’ favorite games creating brand extensions: SET Junior, SET Dice, Five Crowns Junior, Quiddler Junior, Quiddler Deluxe and The Quiddler SHORT Word Dictionary. Her love for travel inspired Mini Rounds^®, which are shorter, faster versions of SET, Five Crowns, Quiddler and Karma. Mini Rounds come in 2” tins and are perfect for on-the-go fun turning "wait time" into "game time." 

Marsha, now retired from Set Enterprises, still enjoys spending time creating games. She also loves to ride her horse, create bonsais and volunteer for K9 Search and Rescue organizations. She is an active member of MarK9, the Maricopa County Sheriff's Office Search and Rescue K-9 Posse, and MC², the Mountain Canine Corp in Los Alamos, New Mexico.