• Ms. Lauren Hill, Mr. Joshua Tranfaglia, Dr. Michael Nicholson, Dr. Jacob Conca, Dr. Stephen Dacey, Dr. Jay McGilvray, and Mr. John Guinan




Xaverian Leadership

List of 7 items.

  • Dr. Jacob Conca '94, Head of School

    Dr. Jacob Conca became Xaverian Brothers High School's first layperson Head of School in 2019. As a 1994 graduate of Xaverian and an employee at Xaverian Brothers Sponsored Schools since 2003, Dr. Conca has a sincere appreciation for and thorough understanding of the Xaverian mission and values. He served as Dean of Students at Xaverian from 2003-2007, Principal of Saint John's High School from 2007-2016, and Principal of Xaverian from 2016-2019 before being appointed Head of School. His background also includes extensive teaching and coaching experience.

    Dr. Conca holds a bachelor's degree from Amherst College, an M.Ed. from Providence College, and a Ph.D. from Boston College. In addition to his work at Xaverian, he serves on the Board of Trustees at Xavier High School in Connecticut and at Notre Dame Academy in Hingham. 
  • Dr. Michael Nicholson, P '29, Principal

    Dr. Michael Nicholson was appointed Principal in November 2019, after serving as Xaverian's Assistant Principal for Student Life. He came to Xaverian from Saint John's High School. There, Dr. Nicholson served as a faculty member in the Religious Studies Department, coach, campus minister, Director of Campus Ministry, and ultimately as the Assistant Principal for Student Life. 

    Dr. Nicholson holds a bachelor's degree in Theology from St. Anselm College and a master's degree in Religious Education and Catholic School Leadership from Boston College. He earned his Doctorate of Education in Interdisciplinary Leadership from Creighton University, in addition to a certificate in Catholic School Leadership. He serves on the Board of Trustees at Saint Bernard School, another Xaverian Brothers Sponsored School that is located in Connecticut. Additionally, he is an adjunct professor at Boston College's Lynch School of Education in the Roche Center for Catholic Education.
     
  • Dr. Stephen Dacey '95, Assistant Principal for Teaching and Learning

    Dr. Stephen Dacey '95 joined Xaverian in the 2003-2004 school year. Responsible for fostering a dynamic teaching and learning environment focused on the classroom and beyond, in his current role Dr. Dacey supports faculty and students in a variety of ways, including assessment of data and incorporating teacher and student feedback into Xaverian's instructional approach. He helps to identify effective models to sustain overall academic growth and excellence at Xaverian.
     
    Dr. Dacey holds a Bachelor of Science in Biology with a minor in Secondary Education from Stonehill College. He also holds a Master of Education in Curriculum and Instruction from Boston College, as well as a Doctor of Education in Educational Leadership from Boston College. Before Xaverian, he worked with the National Aeronautics and Space Administration (NASA) at Goddard Space Flight Center to improve educational use and access of NASA data applications in the classroom. He began his career teaching science at Red Cloud Indian School on the Pine Ridge Indian Reservation in South Dakota. 
  • Ms. Lauren Hill, Assistant Principal for Academics, Grades 9-12

    Ms. Lauren Hill is the Assistant Principal for Academics, Grades 9-12. She holds a Bachelor of Secondary Education from Manhattan College in English, and a Master of School Leadership in Secondary Education from Worcester State. She is presently pursuing her Doctor of Education in organizational leadership from Baylor University.

    Prior to Xaverian, Ms. Hill served as an English teacher, class dean, summer programs director, and co-chair of the professional development committee at Saint John's High School in Shrewsbury. Additionally, she was influential in the process wherein Saint John’s launched a middle school program, serving as co-chair of the ad hoc subcommittee on educational model.

  • Dr. Jay McGilvray, Assistant Principal, Francis Xavier Division Grades 7 & 8

    Dr. Jay McGilvray joined Xaverian in the 2003-2004 school year. He has served as an English teacher, coach, and department chair. He was appointed to Assistant Principal for Grades 7 and 8 (FXD) in May 2013. Dr. McGilvray served as the varsity golf coach for 10 years at Xaverian, the freshman baseball coach for four years, and the Department Chair of the English Department.

    Before joining the faculty at Xaverian, Dr. McGilvray taught middle school in Arlington and Danvers. He holds an undergraduate degree from Elon University, a Master of Educational Administration from Boston College, and a Doctor of Education in Interdisciplinary Leadership as well as a Catholic School Leadership certificate from Creighton University. 
  • Mr. Joshua Tranfaglia, Assistant Principal for Student Life

    Mr. Joshua Tranfaglia joined Xaverian as a social studies faculty member in 2014, and from 2014-2019 taught in the Francis Xavier Division (FXD) and coached golf, basketball, and baseball at both the FXD and high school levels. He became the Assistant Principal for Student Life in 2019. Prior to Xaverian, Mr. Tranfaglia taught social studies and religion at St. Michael School in Fall River.

    Mr. Tranfaglia has a Bachelor of Science in Business Management and a Master of Secondary Education from Providence College. He completed the Providence Alliance for Catholic Teachers program out of Providence College, which prepares teachers for life in Catholic education. 
  • Mr. John Guinan, Dean of Students

    Mr. John Guinan joined Xaverian in 2022. He previously served at Xavier High School in Middletown, CT, a fellow Xaverian Brothers Sponsored School. At Xavier, he co-chaired the committee that led the school through the Xaverian Brothers Sponsored Schools Mission Effectiveness assessment process. 

    Mr. Guinan earned his bachelor’s degree from Assumption University and his master’s degree from Boston College. He also studied in Europe and Central America. He holds a graduate certificate in Catholic School Leadership from Creighton University and also serves as an adjunct professor in the Department of Philosophy at Sacred Heart University.

Faculty & Staff Directory

  • Photo of Marissa Taranto
    Mrs. Marissa Taranto
    Advancement Office Assistant
  • Photo of John Tassinari
    Mr. John Tassinari
    University of Massachusetts - Dartmouth - M.S.
    University of Massachusetts - Dartmouth - B.S.
    Bio
     
    Mr. John Tassinari joined the Xaverian faculty in the 2009-2010 school year. Mr. Tassinari received his Bachelor of Science and Master of Science with a concentration in physics from UMass Dartmouth. After receiving his master’s degree, Mr. Tassinari served as a Ph.D. research candidate in astrophysics at Clemson University via the Kitt Peak Observatory in Arizona, focusing on gamma ray burst theory. Mr. Tassinari also serves as a science club and chess team moderator, and is a coach for FXD baseball.
  • Photo of Robert Thorp
    Dr. Robert Thorp
    Boston Conservatory of Music - B.A.
    University of Maryland - M.M.
    Boston University - D.M.A.
    Bio
     
    Dr. Robert Thorp joined the Xaverian faculty in 2018-2019 school year. Dr. Thorp has performed at Tanglewood, Ravinia, Chautauqua, Bethlehem, and Boston Early Music festivals. He has presented numerous master classes including at Tokyo Conservatory, Osaka Conservatory Nagoya Conservatory, Manhattan School, Rice, Northwestern, San Francisco Conservatory, University of North Texas, and Mannes College. In addition to teaching at Xaverian, Dr. Thorp also teaches at Salem State University, Bunker Hill Community College, and Gordon College. Dr. Thorp studied under Chris Gekker, Rolf Smedvig, and Terry Everson, and holds a B.A. from the Boston Conservatory of Music, a M.M. from the University of Maryland, and a D.M.A. from Boston University. He can be heard on recordings on the Paraclete and RAI labels.
     
  • Photo of Joshua Tranfaglia
    Mr. Joshua Tranfaglia
    Assistant Principal for Student Life
    Providence College - B.S.
    Providence College - M.Ed.
  • Photo of Thomas Trovato
    Mr. Thomas Trovato Jr.
  • Photo of Daniel Tucker
    Mr. Daniel Tucker
    Director of the Ruth Kennedy Library
    University of Massachusetts - Amherst - B.A.
    Andover Newton Theological School - M.Div.
    University of Missouri - M.L.l.S.
    Bio
     
    Mr. Daniel Tucker, P ’21, P ’23, joined Xaverian as a Theology Teacher in the 2004-2005 school  year. Previously, he taught English and Theology and served as the debate coach at Bishop Stang High School in North Dartmouth. Mr.Tucker earned an undergraduate degree in Psychology from UMass-Amherst in 1994. In 1999, Mr. Tucker graduated from Andover Newton Theological School with a Master of Divinity degree. In 2017, he earned a Graduate Certificate in Digital Literacy from the University of Rhode Island School of Education and the Harrington School of Communication and Media.  He completed his Master of Library and Information Science program in 2025 from the University of Missouri. He was appointed library director at the beginning of the 2022-2023 school year. Mr. Tucker serves as a Speech and Debate coach and moderates the Book Club.

Contact Us

List of 13 members.

  • Photo of Ann Alsfeld

    Mrs. Ann Alsfeld 

    Senior Director of Strategic Initiatives
  • Photo of James Conley

    Mr. James Conley 

    Director of Campus Ministry
  • Photo of Edward Currle

    Mr. Edward Currle 

    Director of Athletics
  • Photo of Bryan Finley

    Mr. Bryan Finley 

    Director of Facilities
  • Photo of Michaela Fitzpatrick

    Ms. Michaela Fitzpatrick 

    Director of Counseling
  • Photo of Carolyn Herman

    Dr. Carolyn Herman 

    Director of Staff Formation
  • Photo of Katie Hickey

    Ms. Katie Hickey 

    Director of Strategic Communications
  • Photo of Kyle MacDonald

    Mr. Kyle MacDonald 

    Director of Admissions
  • Photo of Anif McDonald

    Mr. Anif McDonald 

    Director of Community, Culture, and Equity
  • Photo of Barbara Messina

    Mrs. Barbara Messina 

    Director of Finance and Operations
  • Photo of Daniel Tucker

    Mr. Daniel Tucker 

    Director of the Ruth Kennedy Library
  • Photo of Christopher Vasta

    Dr. Christopher Vasta 

    Chief Administrator for School Advancement
  • Photo of Gregg Whitaker

    Mr. Gregg Whitaker 

    Director of Technology

Xaverian Brothers High School

Phone: 781-326-6392
Fax: 781-320-0458
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EIN (Tax ID Number): 04-2314036 
Xaverian is a Catholic, college-preparatory school for boys in grades 7-12. As an inclusive community, we embrace diverse experiences and perspectives, welcoming students and families from all faiths and backgrounds. Through exceptional academics, athletics, the arts, faith formation, and service opportunities, we help young men discover their unique gifts and talents so they can share them with a world in need.