Theresa Casey Flanagan, age 88, of Newtown, formerly a longtime resident of Bellmore, N.Y., passed away peacefully at her home on March 30, 2019, surrounded by her family, after a courageous battle with cancer.

Theresa “Terry” was born on August 10, 1930, in Brooklyn, N.Y., a daughter of the late Patrick Casey and Mary Ann Bligh Casey. She graduated from St John’s University.

In 1957, she married Thomas Flanagan, a lawyer, who later became the director of the New York City Police Department’s legal division. They settled on Long Island, where they raised their children. Terry taught reading in the Bellmore public schools and later became a substitute teacher so that she could devote more time to her family. Her passion for the arts led her to volunteer for more than 20 years at the Metropolitan Museum of Art, where she had introduced her children, and later her grandchildren, to painting and sculpture. She was also an enthusiastic bridge player and gardener as well as a lifelong swimmer.

Terry is survived by her adoring husband, Tom; her beloved children, Nancy (Timothy), Tom (Marion), Susan, Anastasia, Moira (Greg), and John (Lily); as well as her cherished seven granddaughters, Caroline, Claire, Fiona, Lily, Madeleine, Annabelle, and Rebecca. She is also survived by her loving brother, James Casey.

Her brothers, Patrick and Lawrence Casey, predeceased her.

A Mass of Christian burial will be celebrated on April 3, 2019, at 10 am, in St Mary’s R.C. Church, 26 Dodgingtown Road, Bethel. The burial will be private.

Arrangements in care of Honan Funeral Home, 58 Main Street, Newtown.