Captain (CPT) Seth Seaton was born in Fort Smith, Arkansas, on 19 August 1985. He graduated from Greenwood High School in 2004, earned a Bachelor of Arts in Music from Arkansas Tech University in 2009, a Master of Science in Education in 2012, and a Specialized Master’s degree in Educational Leadership in 2019.

CPT Seaton began his career teaching music at Academics Plus Charter School in Maumelle, Arkansas, where he developed the K–8 general music program and beginning band, and founded the Academics Plus Music Society. In 2012, he became Director of Bands and Choirs at Bigelow High School, serving until 2016.

He enlisted in the Arkansas Army National Guard in 2013, completed Basic Combat Training (2014), Officer Candidate School (2015), and the Infantry Basic Officer Leader Course (2016). His service includes deployment to El Salvador in 2017 with the 39th Infantry Brigade Combat Team, roles as S3 Operations Officer and S4 Logistics Officer, and command of Headquarters and Headquarters Company at Camp Robinson. In 2023, he deployed to Germany to support partner-nation training during the Russia-Ukraine conflict.

In November 2025, CPT Seaton founded the Republic Institute and currently serves as its Executive Director at the pleasure of the Board of Trustees.