HOPKINTON – Marie Janet (St. Pierre) Brock, 88, a retired nurse and employee of the Massachusetts Turnpike Authority, died Monday, May 12, 2025, at her home surrounded by loved ones. She was the wife of the late Sergeant Thomas Brock of the Massachusetts State Police, to whom she was married for 31 years. Thomas died in October 2021.

Marie graduated from Commerce High School in Worcester and attended nursing school there. She worked many years in hospice before leaving for a career on the Mass Pike. She was loved and respected by all she served. She enjoyed homes on Mount Rumney in New Hampshire, Port Saint Lucie, Florida, and her primary residence in Hopkinton, Massachusetts. 

She is survived by her children: devoted son Jon Lachapelle, daughter Diane Strickland, daughter Janet Horning, and husband Joel. She also leaves granddaughters Michelle Lachapelle, Samantha Herman, and Camille Fowley, grandsons Kyle and Brandon Strickland, and loving cousins Charlene Donohue and Christine Ziegler. 

Her daughters, Denise Herman and Donna Pomeroy, preceded her in death.

The funeral will be held Friday, May 16, 2025, at 10:00 A.M. from the Callanan Cronin Funeral Home, 34 Church Street, Hopkinton. A funeral Mass will be celebrated at 11:00 A.M. in St. John the Evangelist Church, 20 Church Street, Hopkinton. Burial will follow in St. John’s Cemetery, Hopkinton. Calling hours at the funeral home are Thursday, May 15, 2025, from 4:00 to 7:00 P.M.