Mariann Genematas Ernst, President
As President, Mariann is responsible for the overall operations of The Foundation, and serves as Ambassador to the communities within which The Foundation provides support.

Granddaughter of founder Nicholas W. Genematas, Mariann graduated cum laude with a Bachelor of Arts degree from Albion College in Albion, Michigan. She worked in marketing at an ad agency in Royal Oak, Michigan, and also spent several years at the company her grandfather built, Marathon Linen Service, in quality control, marketing, and accounting services.

A life-long interest in the fashion industry drew Mariann to work in retail fashion for several years while her husband Brett studied medicine at Wayne State University. Following his residency, Mariann and Brett settled in Harrisburg, Pennsylvania and raised their two daughters. Mariann ultimately returned to retail fashion, where she has helped manage a high-end boutique for the past 12 years, working in sales, marketing, and buying, and coordinating fashion shows held to benefit various non-profit organizations.

 Brett B. Ernst, M.D., Vice President
Brett grew up in Rochester, Michigan, and began medical school after graduating with honors from Albion College. He received his medical degree from Wayne State University and completed his Residency at the Cleveland Clinic in Ohio before joining Schein Ernst Eye Associates in 1993, where he is currently Vice President and Treasurer. He is Board Certified and a Fellow of the American Academy of Cataract and Refractive Surgery and is a member of the Pennsylvania Academy of Ophthalmology. Dr. Ernst serves as Chief of Ophthalmology for Pinnacle Health System and is an Associate professor at the Penn State University School of Medicine. Brett lives in Harrisburg with his wife Mariann, and they have two daughters.

 Duke C. Corley, CPA
Duke C. Corley serves as Certified Public Accountant for The Foundation. Duke graduated from the University of Arizona with degrees in Finance and Accounting, and has practiced accountancy and financial consultancy for a number of respected firms including Peat Marwick Mitchell, Merrill Lynch and KPMG. In 1991 he founded Duke Corley CPA PC, where he serves as President.

Duke’s practice areas include income tax preparation for individuals, fiduciaries, private foundations, C corporations, S corporations and partnerships; and tax planning and accounting assistance for individuals, small businesses, and private foundations. He is a member of the Arizona State Board of Accountancy and the Arizona Society of CPAs.

In addition to his work for The Nicholas W. Genematas II Foundation, Duke devotes his time and accountancy skills to the United Way, the Tucson Girls Chorus, the Phi Gamma Delta House Corporation, the Fruchthendler Elementary PTO, and on the Public Relations Committee of the Southern Chapter of the Arizona Society of CPAs.