Kathleen M. O'Brien Profile Photo
Kathleen "Kathy" O'Brien

Kathleen M. O'Brien

d. December 31, 2025

MILLBURY

MILLBURY – Kathleen “Kathy” (Fox) O’Brien, 63, passed away peacefully in her home on Wednesday, Dec. 31st surrounded by her family.

Kathy leaves behind her loving husband of 41 years, John O’Brien, her twin sons, Jack and Tucker O’Brien, Jack’s wife Jennifer, Tucker’s wife Rachel and their son Benjamin, her brother, Richard Fox, Jr., her sister Beth Pallesen and her husband Keith Pallesen and their daughter Brierly Wills, and her beloved cats, Bella and Rosie. Kathy made an impact everywhere she went, and also leaves behind an incalculable list of friends, colleagues, and loved ones.

She is predeceased by her son Patrick O’Brien, and her parents: Richard Fox, Ed.D. and Patricia Fox.

A third-generation resident of Millbury, Kathy graduated from Millbury High School and applied herself intensely to a career in healthcare spanning 30 years, working in various administrative and credentialing roles at Fallon Health and UMass Memorial Health. Outside of work, Kathy was a passionate and vivacious woman with numerous hobbies. An avid reader, her favorite way to pass the time was sitting at Pleasant Road Beach in Cape Cod with her husband, lost in a book. She was a huge fan of Boston sports, loved to sing, cook, knit, and was deeply involved in the lives of her children.

Family and friends will remember and celebrate Kathy’s life by gathering for a time of visitation on Friday, Jan. 9th from 10 a.m. to Noon with her funeral service to follow at Noon. Following this, a burial and committal service will be held in Central Cemetery, Millbury.

In addition to or as an alternative to flowers, please consider making a donation to the Dana-Farber Cancer Institute in memory of Kathy to support cancer research and patient care at: Dana-Farber Cancer Institute, P.O. Box 849168 Boston, MA 02284 or via dana-farber.org/gift 

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If you wish to send flowers to these services, Mulhane Home for Funerals recommends contacting a local florist directly for the best experience and value.

Local Florist:

Floral Boutique 508-754-5637 www.floralboutiquemillbury.com 

Posies N Presents 508-581-4164 www.posiesnpresents.com 

Service Schedule

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Visitation

Friday, January 9, 2026

10:00 am - 12:00 pm (Eastern time)

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Mulhane Home For Funerals

45 N. Main Street, Millbury, MA 01527

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Funeral Service

Friday, January 9, 2026

Starts at 12:00 pm (Eastern time)

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Mulhane Home For Funerals

45 N. Main Street, Millbury, MA 01527

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Burial & Committal Service

Friday, January 9, 2026

Starts at 1:00 pm (Eastern time)

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