Faculty Directory

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Dr. Josef Cressotti
Headmaster

Josef Cressotti grew up in Western Massachusetts, where he graduated from Holyoke Catholic High School in 1995. Having studied film at Yale, Josef worked in the documentary film industry in New York and Los Angeles for three years before going to Scotland to study philosophy at the University of Glasgow in 2002. Josef continued his studies at the University of California, Riverside, where he completed a dissertation on Immanuel Kant. For the past fourteen years, Josef has taught philosophy, religion, and Latin at St. Sebastian’s School in Needham, becoming the Chair of the Religion Department in 2020. A lifelong runner with 11 marathons under his belt, Josef coached the Varsity Cross Country team at St. Sebastian's for eight years.

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    Tyler Worthy

    Euclidean Geometry & Humanities

    Tyler Worthy attended the Thomas More College of Liberal Arts in his home state of New Hampshire, graduating with a Bachelor of Arts degree in 2013.  He went on to earn a pontifical Master's degree in Sacred Theology from the International Theological Institute in Austria in 2015.

    Mr. Worthy has taught for a total of nine years, including seven years in Louisville, Kentucky.  Over the course of his career, he has taught numerous subjects, including Theology, Latin and History and Literature of various periods. 

    Outside of the classroom, he has given presentations to Catholic groups, both in Kentucky and in New Hampshire, and he has also had an abridged version of his Master's thesis published in the Homiletic and Pastoral Review.

  • Felicity Davis

    Mathematics ‍

    Felicity Davis teaches Mathematics at Chesterton Academy of the Immaculata. She graduated from Benedictine College with her Bachelor of Arts in Secondary Education and Mathematics. Felicity is originally from Lincoln, Nebraska, and moved to the Boston area as a part of the St. Thomas More Teaching Fellows. She is dedicated to helping students thrive in a faith-filled environment, where they can discover truth, goodness, and beauty. Outside of school, she enjoys reading, exploring different coffee shops, and going for walks. 

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    Julia Daher

    Fine Arts

    Julia Daher spent the last year as an Art Teaching Assistant at Montrose School in Medfield. She graduated from the University of Massachusetts Dartmouth with a Bachelor’s degree in Fine Arts. She enjoys helping her students discover the beauty and skill that it takes to create great works of art. In her spare time, Julia likes to paint, draw, read, and visit art museums such as the Ringling Museum of Art, in Sarasota, Florida, and the Isabella Stewart Gardner Museum in Boston, Massachusetts.

  • Brian Dean Sousa

    Music

    Brian Sousa teaches Music, Financial Literacy, and Woodworking at Chesterton Academy of the Immaculata. He holds a Master of Music in Choral Conducting from James Madison University and a Bachelor of Music in Sacred Music and Organ from Westminster Choir College.

    Brian brings more than two decades of experience as a conductor, educator, church musician, and arts leader. In addition to his work at Chesterton, he serves as Interim Choral Director and Lecturer at Salve Regina University and as Artistic Director of both the Falmouth Chorale and the Greater New Bedford Choral Society. He is also Director of Music and Organist at St. Mary Star of the Sea in Beverly.

    Brian enjoys helping students discover truth, goodness, and beauty through music while developing creativity, discipline, confidence, and practical skills.

  • Dr. Stephen A. Fossey

    Chemistry

    Stephen Fossey has a PhD in Polymer Science & Plastics Engineering as well as an MS and BS in Chemical Engineering from the UMass, Lowell. He retired from the US Army Natick RD&E Center after a 35 year civilian career in materials research and development. Steve worked primarily on computational chemistry for a wide range of advanced materials including spider silk, organic photovoltaics, and conducting polymers. He has held visiting scientist positions at Cornell University, Technical University of Munich in Germany, and Tokyo University of Agriculture and Technology in Japan. He has numerous professional publications and presentations and two patents.

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    Jenny D'Innocenzo

    Admissions Officer

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    Brianna Hougham

    Administrative Assistant/Receptionist

  • Deborah Convery

    Admissions Officer

  • Emma Kearney

    Admissions Officer