The Mary Sue Effect

Mary Sue Seymour
Sept 21, 1952 – March 21, 2016.

Just 64 years old when she was taken by cancer…She will be dearly missed. But we can raise money, in her name, for a cause she truly believed in.


On my road to the Boston Marathon (April 2018), I’m hoping to raise over $3,000.00, in Mary Sue’s name, for a cause she held near and dear to her heart.

Will you join me?


Here’s a little bit about her…

Mary Sue Seymour was a talented woman who wore many hats. A talented artist, illustrator, author, agent, educator, musician–it seemed like her talents knew no bounds, nor did her propensity for kindness. From teaching Vacation Bible School to adult watercolor classes at her alma mater, The State University of New York at Potsdam, to working at a local catholic school with their vocal music and art program, Mary Sue made the most of each and every day.

Beloved wife to Mike Seymour, mother to Luke and Matt, and friend to countless hundreds, her legacy lives on in her children, grandchild Grayson, and in the incredible legacy she created with The Seymour Agency–a literary agency specializing in a broad range of fiction and nonfiction. Mary Sue is directly and indirectly responsible for the publication of thousands of individual books. Her contribution to publishing is immeasurable and has changed countless lives.

Mary Sue Seymour was a member of the Author’s Guild, the AAR, ACFW, WGA, and RWA.

She was named ACFW’s AGENT OF THE YEAR in 2015.

Mary Sue Seymour was listed by Publishers Marketplace as one of the top dealmakers in the country.

Mary Sue believed in the Bible verse in Romans 10:12 that states, “For there is no difference between Jew and Gentile – the same Lord is Lord of all and richly blesses all who call on him…”

Her faith was of great comfort as she battled Stage IV colon cancer that metastasized to her liver. Always strong, she was oftentimes quoted on Facebook telling friends how much she appreciated her chemo treatments because they extended her time on this earth. Her positive outlook inspired “The Mary Sue Effect” and anyone who knew her would know that her ‘glass always half full’ optimism was an inspiration to so many.

Mary Sue enjoyed running, participating in many 5ks and half-marathons. She was also known for challenging her friends to as well, so I’m excited to chronicle my journey to the 2018 Boston Marathon in her name.

Will you join me?


Once more, here’s the link to the St. Jude’s donation page, and I hope you’ll spread it around to your friends and family!