Board of Trustees

Overfield’s Board of Trustees exists to provide leadership, make strategic decisions, and take appropriate actions to safeguard the continuing viability of the school’s mission for current and future generations of young children.

This committee-driven body, with members in professions including education, law, business, non-profit work, and medicine, is comprised of community members, some of whom are current or past Overfield parents, who live in Troy and surrounding communities. The Board, dedicated to the school’s well-being, offers insight and guidance about the fiduciary and strategic plans aspects of Overfield.


Julia Hobart
Julia Hobart Founder, Trustee Emerita
Trustee since 1960
Committees: Executive, 50th Campaign
Education: Tufts University; B.S., University of Dayton
Six children attended Overfield from 1960 – 1974

Karol McCarthy
Karol McCarthy Trustee Emerita
Trustee since 1983
Education: A.B., Ohio Wesleyan University; M Ed., Xavier University; Post Graduate, The Ohio State University
Occupation: Retired Educator

Stacey Earhart
Stacey Earhart
Trustee since 2008
Committees: Governance, State of the School, 50th Campaign, Strategic Plan
Education: B.A. Zoology and Masters of Technological & Scientific Communication, Miami University
Occupation: Community Volunteer
Three children attended Overfield from 2003 through 2013

Shawn McElroy
Shawn McElroy
Trustee since 2010
Committees: Executive Committee (Chair), Finance, Buildings and Grounds
Occupation: Director of Organizational Development, Shelby County Educational Service Center
One child attended Overfield from 2010-2013

Julie Biddle
Julie Biddle
Trustee since 2014
Committees: Executive Committee (Immediate Past Chair), Governance
Education: B.S., Elementary Education and Teaching, State University of New York College at Genesco; M.S., Early Childhood Education, Vanderbilt University; Ph.D. Educational Leadership & Administration, University of Dayton
Occupation: Professor, Chair of Initial Licensure Programs, Antioch Midwest

William Harrelson
William Harrelson
Trustee since 2014
Committees: Finance (Chair), Buildings & Grounds, Governance
Education: B.S., Miami University; J.D., University of Dayton
Occupation: Attorney, Faust, Harrelson, Fulker, McCarthy & Schlemmer

Erica Baer
Erica Baer
Trustee since 2014
Committees: Social Chair, Marketing, 50th Campaign – Alumni Relations
Education: M. Ed., The Ohio State University; B.A. in English, French minor, The Ohio State University
Occupation: English teacher: Troy Christian High School Freshman and Honors freshman English; College Credit Plus: Expository Writing, Research Writing, and Introduction to Literature

Mark Iiames
Mark Iiames
Trustee since 2015
Committees: Executive Committee (Chair Elect), Buildings & Grounds, Finance, Governance
Education: B.A., Purdue University; MBA, Otterbein University
Occupation: Vice President, Sidney Electric Company
One child currently attending Overfield
Alumni of Overfield (Log Cabin)
Amy Harris
Amy Harris
Trustee since 2016
Committees: Marketing
Education: B.A., M.A. Missouri State University, Ph.D. University of Maryland
Occupation: Writing Program Director, Central State University
One child attended Overfield from 2013-2016

Anne Dettmer
Anne Dettmer
Trustee since 2016
Committees: Finance, Buildings and Grounds
Education: B.A., Economics, Wellesley College; J.D., University of Virginia
Occupation: Associate Director of Enrollment, The Miami Valley School

David Larson
David Larson
Trustee since 2017
Committees: Development, Governance
Education: B.S. Education, Bowling Green State University; M.S., Educational Leadership, University of Dayton; Principal and Superintendent License, University of Dayton
Occupation: Director of Curriculum, Instruction, and Professional Development, Miami County Education Service Center
Two children attended Overfield from 2011-2016
Jennifer Walters
Jennifer Walters
Trustee since 2017
Committees: Development, Governance
Education: B.S. English, University of Dayton; J.D., University of Akron
Occupation: Attorney at Law, Huffman, Landis, Weaks & Walters, Co, LPA
Two children attended Overfield from 2005-2009

Lisa Sargent
Lisa Sargent
Trustee since 2017
Committees: Marketing
Education: B.S. Business/Management, Ohio Northern University
Occupation: Community Volunteer