Claire L. Marcinowski Obituary
With sadness, we share the passing of Claire L. Marcinowski of Waltham, Massachusetts. Claire, born on February 7, 1938, passed away on September 24, 2026. Family and friends can send flowers and condolences in memory of the loved one. Leave a sympathy message to the family on the memorial page of Claire L. Marcinowski to pay them a last tribute.
She was predeceased by: her parents, Henry McIsaac and Claire McIsaac (Farrington); and her siblings, Marie Mantey and John McIsaac. She is survived by: her husband Robert P. Marcinowski; her children, Janet M. Santosuosso of West Sand Lake, Kathryn A. Littlefield (Scott) of Atlanta, Georgia, Karen E. Rainbolt (Edward) of Los Osos and Joseph A. Marcinowski of Hopkinton; her grandchildren, Jacob Santosuosso (Laura), Jillian Santosuosso, Garreth Santosuosso (Eliza), Olivia Santosuosso, Henry Santosuosso, Sarah Littlefield (John Green), Rebecca Littlefield, Dawn Rainbolt (Nathaneal Boulot), Victoria Anton (Blake), Adam Rainbolt, Bradley Rainbolt, Joseph Marcinowski and James Marcinowski; and her great grandchildren, Miriam "Max" Petion, Darius Petion, Milo Santosuosso, Henry Santosuosso, Louise Santosuosso, Carter Anton and Arthur Boulot. She is also survived by several nieces, nephews.
A wake will be held on Thursday, October 1st 2026 from 2:00 PM to 4:00 PM and on Friday, October 2nd 2026 at 9:00 AM. A funeral Mass will be held on Friday, October 2nd 2026 at 10:00 AM at the Book Hotel Saint Mary's Church (133 School St, Waltham, MA 02452). A burial will be held on Friday, October 2nd 2026 at the Book Hotel Saint Mary's Cemetery (1 Wellesley Ave, Needham, MA 02494).
