Katie Lynn Mandelburg

Quaker Hill - Katie Lynn (Chapman) Mandelburg of Quaker Hill, was called home to be with her savior Monday, March 23, 2026. She is predeceased by her maternal grandparents, Gloria and Carl Dunlap; and paternal grandparents, Evelyn and Richard Chapman; as well as her aunt Linda Gifford.

Katie is survived by her parents, Barbara and William Chapman; her brothers, Brian and Scott Chapman, along with Scott's wife Carolyn; and her uncle Chris and aunt Martha. She is lovingly remembered by her six brothers-in-law, six sisters-in-law; and 17 cherished nieces and nephews. Katie leaves behind her husband Jon-Paul Mandelburg; and their five beloved children, Levi (12), Sawyer (9), Calvin (7), Juniper (3), and Theo (1). She was a faithful mother who cherished each of her precious children. They are left with countless memories of her joyful heart and bright spirit, reflected so beautifully in each of their lives. She loved Jon-Paul deeply for their thirteen years of marriage. She was a wonderful daughter, sister, aunt, and friend, but most importantly, a faithful follower of Jesus.

Katie was born in New Haven, July 1, 1984. She was a skilled artist and singer, had a love for horses, skiing and music, and used her beautiful voice to help lead worship at her home church, Groton Bible Chapel.

Katie grew up in Clinton, graduating from Morgan High School, and later attending Endicott College in Beverly, Mass. It was there where she formed several lifelong friendships and devoted her life to Christ. She worked as an EMT and a Care Coordinator helping individuals receive quality care enabling them to age in their homes.

Katie's life was a testament to faith, love, and resilience. Over the past year, she courageously battled cancer while also walking alongside her son Calvin through his own battle with cancer. Her strength, selflessness, and unwavering trust in God were an inspiration to all who witnessed her journey. She never faltered in her faith, in her commitment to her family or missed an opportunity for a witty, dark, one liner. All three helped her through her final days.

Katie was a committed and loving wife and mother, pouring herself out to those she cared for. She lived life fully, spoke honestly, and loved to laugh and make others laugh. Katie's love for her family and friends was limitless. She saw the best in people and demonstrated her devout faith through her extension of grace, forgiveness, and compassion to those around her. Katie will be remembered for her joyful heart, her deep devotion to her family, and her steadfast faith.

Visiting hours will take place from 4:30 to 7:30 p.m. Friday, March 27, 2026, at Mystic Funeral Home located on Route 1 in Mystic. A memorial service will take place at 11 a.m. Saturday, April 11, 2026, at Groton Bible Chapel, 66 Toll Gate Road, Groton.

In Lieu of flowers, donations can be made to Groton Bible Chapel where Katie was a loved and active member of the congregation.