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John Zeitler is a dedicated educator currently teaching fourth grade at St. Rocco Parish School within the Diocese of Cleveland since September 2023. Prior to this role, Zeitler held various positions in the chemical industry, notably serving as a Lead Senior R&D Chemist and R&D Senior Chemist at Pison Stream Solutions Inc. from July 2019 to November 2021. Zeitler also worked as a Supervisor at National Safety Apparel from December 2021 until September 2023, after previously occupying roles ranging from Quality Control and Analytical Services Manager at Flow Polymers, LLC to Analytical Chemist at Rhein Chemie and Elastochem, Inc. A background in analytical chemistry was further established with earlier positions at Ferro Corporation and Nordson Corporation. Zeitler holds a Master’s degree in Curriculum and Instruction from Cleveland State University and a Bachelor’s degree in Chemistry from Case Western Reserve University.