Team

Diana Irey Vaughan is the President & CEO of City Mission. Diana became the President/CEO of City Mission on March 1, 2024, after serving as Washington County Commissioner for nearly 30 years. As a Commissioner, Irey Vaughan was known for her leadership in economic development, human services, and humanitarian efforts. During her tenure, she supervised over 1500 Washington County employees within twenty-eight departments and a budget of $253,000,000. Diana also provided oversight to a 275 -bed nursing facility and the Washington County Jail. Diana attended West Virginia Business College, Fairmont State, and California University. She has served on numerous Boards and received countless awards including the Washington County Athena Award, the American Legion Medal of Honor, and the Spirit of Southpointe Award. In 2023 the Athena Young Professional Leadership Award was renamed to the Diana Irey Vaughan Young Professional Award. Driven by her Christian faith, Diana has been a devoted supporter of City Mission for many years and personally raised over $180,0000 for the mission since 2016 through her long-distance charity runs. Upon accepting this new role, Irey Vaughan stated that she was “humbled and honored to be chosen for the role that will provide care for neighbors in need and transform lives.”

Michael Namie currently serves as the Chief Financial Officer (CFO) at the Washington City Mission, where he brings more than 32 years of distinguished financial leadership experience, in the public sector. Michael is responsible for overseeing the Mission’s financial operations, ensuring fiscal responsibility, maintaining transparency, and upholding the organization’s financial integrity. Before joining the Washington City Mission in June 2024, Michael had a successful tenure as the County Controller for Washington County, Pennsylvania, where he spent 20 years overseeing the financial management of the county’s budget. In his current role, Michael works closely with the Mission’s executive team and board of directors to formulate and implement long-term financial strategies aimed at supporting the organization’s sustainability and growth. His focus is on maximizing resources, improving financial processes, and ensuring the financial health of the Mission while fostering a culture of financial integrity and donor trust. Michael is a graduate of Washington & Jefferson College and a lifelong resident of Washington, Pennsylvania. He is married and a proud father of two children.

Melissa C. Marion, CFRE, serves as the Director of Development at Washington City Mission, where she leads a team of marketing and development professionals dedicated to advancing the Mission’s work of transforming lives. With over 15 years of experience in nonprofit fundraising and community engagement, Melissa specializes in donor stewardship, capital campaigns, grant writing, and strategic leadership. Before joining City Mission, she was recognized by the Association of Healthcare Philanthropy as a 2022 “40 Under 40” honoree and is a graduate of Leadership Washington County. Melissa lives outside of Pittsburgh with her husband, two children, and their German Shepherd, and enjoys spending time outdoors and watching her children’s sports.

Leah Dietrich is the Director of Residential Programs at City Mission. Leah earned her Masters of Arts degree in Counseling from Waynesburg University and is a licensed professional counselor. At Waynesburg University, Leah found a true passion for service leadership through years of holding various leadership positions on the Waynesburg University campus. Leah was hired at City Mission in 2011 as a counselor, and proved herself capable at every level, earning a promotion to the position of Director of Residential Programs. Leah has worked to revise and revamp the City Mission program, which has proven to increase the overall effectiveness of that program. When Leah received her promotion in 2017, she became the youngest Director in City Mission history. In her first year in this role, Leah led a team to create programming for the City Mission’s two new facilities, the Women with Children’s Program and the Crabtree-Kovacicek Veterans House. In 2018 Leah took on additional responsibilities including supervision of the medical clinic, career training and education center, and the direct care team growing her clinical team to 30. In her personal life, Leah is an active member of the Faith United Presbyterian Church and resides in Washington, PA with her husband and two sons.