St. Mary's Parish

"To know Christ and to make Him known..."


St. Mary's Catholic Church
8 Church St
Holliston, MA 01746

Rectory 508∙429∙4427 or 508∙879∙2322
Religious Education
FAX 508∙429∙3324

Parish Clergy

Rev. Mark J. Coiro, Pastor
Deacon Martin Breinlinger, Permanent Deacon
Deacon Philip Caruso, Permanent Deacon


Rev. Mark J. Coiro

Fr. Mark is a 1990 graduate of St. Anselm College in Manchester New Hampshire, where he received his Bachelor’s Degree in Theology and Certification in Classics in 1990. He then attended St. John’s Seminary in Boston, receiving his Master of Divinity with a specialization in Systematic Theology in 1994.

While in seminary he joined the United States Army Reserve as a Chaplain Candidate, being commissioned a Lieutenant in the Staff Specialist Branch. In this capacity he served active duty tours at Fort Leonard Wood, MO; Letterman U.S. Army Hospital in San Francisco; and also with the 364th Armor Battalion in Schweinfurt, Germany.

On May 21, 1994 he was ordained a priest at the Cathedral of the Holy Cross in Boston. Fr. Mark said his First Mass of Thanksgiving at St. Clement’s Parish in Somerville, then served as Parochial Vicar in the Parishes of St. Theresa’s in Billerica, St. Jerome’s in N. Weymouth, and St. Joseph’s in Medway.

In October of 2005, Archbishop Sean O’Malley ended Fr. Mark’s assignment as Parochial Vicar in Medway, and named him as the fourteenth Pastor of the neighboring parish of St. Mary’s, Holliston.

Deacon Martin Breinlinger
Permanent Deacon

Martin (Marty) Breinlinger was ordained to the diaconate in 1976, the first deacon class in the Archdiocese of Boston. His training took place at St. John’s seminary.

After ordination, Marty received a certificate in Pastoral Ministry from Emmanuel College. He has served at St. Mary’s since ordination. He and his wife, Mary Alice, were involved in family ministry for many years. Additionally he has been involved in the RCIA program, ministry to the divorced and separated, and religious education. Currently Marty is directing the Ministry to the Homebound.

Marty is retired from the Polaroid Corporation and currently teaches negotiation and mediation at Clark University in Worcester. He has been a resident of Holliston since 1966.

Deacon Philip Caruso
Permanent Deacon

Deacon Philip Caruso grew up in Boston and was a member of Holy Name Parish. He attended Boston college High School, then Boston College, where he received a B.S. in Biology. His education continued at Georgetown University School of Dentistry.

While in high school and college, he was in the United States naval Reserves in submarine service and qualified as a submariner.

While in dental school, he married Diane Mahony on December 28th, 1963.

After dental school, he was stationed with the third marine Air Wing as a Navy dentist at El Toro in Tustin, California.

Deacon Caruso and his family have lived in Holliston since 1969. He and his wife have five children. He is in private practice in Holliston and is also a dentist for the Sisters of Saint Joseph at Bethany Health Care Center.

He was ordained for the Permanent Diaconate on May 14th, 1983 and has been serving St. Mary’s happily ever since.

This page was last updated on: September 11, 2010