• 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 Jacob Conca
    Dr. Jacob Conca
    Head of School
    Boston College - Ph.D.
  • Photo of Stephen Dacey
    Dr. Stephen Dacey
    Assistant Principal for Teaching and Learning
    Stonehill College - B.S.
    Boston College - M.Ed.
    Boston College - Ed.D.
  • Photo of Jennifer Daly
    Mrs. Jennifer Daly
    Quinnipiac University - M.A.
    Merrimack College - B.A.
    Bio
     
    Mrs. Jennifer Daly, P ’28 joined the Xaverian Staff in the 2024-2025 school year. Prior to Xaverian, she taught in both Medway and Wellesley. Mrs. Daly has a Bachelor of Science in psychology from Merrimack College, and a masters in elementary education from Quinnipiac University. 
  • Photo of Jennifer Ferraro
    Mrs. Jennifer Ferraro
    Admin Assistant to the Academic Asst. Principals
    Niagara University - B.S.
  • Photo of Jessica Giberson
    Mrs. Jessica Giberson
    Southern New Hampshire University - B.S.N., R.N.
  • Photo of John Guinan
    Mr. John Guinan
    Dean of Students
    Assumption University - B.A.
    Boston College - M.A.
  • Photo of Carolyn Herman
    Dr. Carolyn Herman
    Director of Staff Formation
    University of Notre Dame - B.S.
    Catholic University of America - M.A.
    Boston College - Ph.D.
  • Photo of Lauren Hill
    Ms. Lauren Hill
    Assistant Principal
    Manhattan College - B.A.
    Worcester State College - M.Ed
  • Photo of Julie Horne
    Ms. Julie Horne
    Administrative Assistant to the Administration
    Aquinas Junior College - A.S.
  • Photo of Joseph McGilvray
    Dr. Joseph McGilvray III
    Assistant Principal for the Francis Xavier Division
    Elon University - B.A.
    Boston College - M.Ed.
    Creighton University - Ed.D
  • Photo of Michael Nicholson
    Dr. Michael Nicholson
    Principal
    Boston College - M.Ed.
    Creighton University - Ed.D
  • Photo of Joshua Tranfaglia
    Mr. Joshua Tranfaglia
    Assistant Principal for Student Life
    Providence College - B.S.
    Providence College - M.Ed.
  • Photo of Victoria Wesalowski
    Ms. Victoria Wesalowski
    Boston University - B.S.

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.