Caitlin Marie Mills, 40, of Hyannis passed away Thursday July 24, 2025 at Tufts Medical Center.

Born in Morgantown, West Virginia, the daughter of Jane Saunders-Mills and the late Dr. Steven G. Mills, she lived in New Bedford and Fall River for most of her life before moving to Cape Cod two years ago.  She was a graduate of B.M.C. Durfee Hugh School in Fall River.

Caitlin was a kind-hearted person who loved doing her hair and makeup to make sure she always looked beautiful.  She enjoyed going to amusement parks, watching horror movies and reality TV shows, and listening to music.  She also enjoyed fishing, since it reminded her of time spent with her father.

She is survived by her mother, Jane; her daughter, Hailey Carreiro; her partner of nine years, Shawn Sousa; her mother's longtime companion, Maria Quercio; her nephews, Christian and Cayden Smith; and aunts, uncles, and cousins.

She was predeceased by her sister, Erin M. Mills.

Her funeral service will be held on Thursday July 31st at 11 AM at the Saunders-Dwyer Home for Funerals, 495 Park St., New Bedford.  Burial will follow in Pine Grove Cemetery.  Visitation will be on Thursday from 10-11 AM prior to the service.  For online condolence book, please visit www.saundersdwyer.com.