Marilyn John currently serves as a state representative in State House District 76. She was elected to this position in 2020 and is serving her 2nd term. She previously served as a Richland County Commissioner and Mayor of the City of Shelby.

Marilyn works as the executive director of the Shelby Senior Center. She previously worked as a commercial lines underwriter at the Shelby Insurance Company.

Marilyn is from Richland County, where she still lives today. She holds an associate's degree in business management from North Central State College, a bachelor's degree from North Central State College, and a master of business administration degree from Ashland University. Marilyn and her husband, Kevin, have 2 children. Their family attends Crossroads Community Church in Mansfield.