Nathan Sheldon was born in Rio-de-Janeiro, Brazil. His parents, linguistic missionaries, moved Nathan to the heart of the Amazon Jungle to live with an indigenous group called the Mura Piraha. At about eleven, the family moved out of the jungle to Brazil's capital, Brasilia. Nathan would live in Brasilia until his senior year of high school when the family moved to the U.S., where Nathan would graduate high school.
He attended John Brown University in Siloam Springs, AR, where he played soccer and tennis, and was very involved in Student Government and served as treasurer his senior year in college, graduating in 1989. He started Graduate School at the University of Oklahoma, where he graduated with a Master's in Accounting – Tax emphasis. He married his college sweetheart Staci in the Fall of 1990. They have two grown children, Sarah, and Steven.
Nathan started his career in Accounting, working with Deloitte & Touche in the tax department.
He transitioned to the Finance side of accounting and served as controller for Candid Color and then as the wholesale controller for the largest whole food distributor in the country, Fleming. He is finishing his 19th year at the premier Independent School in Oklahoma City, first as the Director of Operations, and for the last eight years, as the Head of School at Casady School. Casady School is an Independent day school with approximately 990 boys and girls in grades pre-k through 12th grade.
He has raised more than $30m in his eight years as Head of School, and has overseen the construction of three educational buildings, enhanced secure entrances, and remodeled four academic buildings on the 26-building campus.