Adellia "Addie" L. Demaris

Adellia Loraine Cosgriffe Demaris arrived on a beautiful Fall day in Billings, Montana on October 29,
1974. As her family rejoiced her arrival, they overheard the nurses ask one another if “they had heard
the Cosgriffe baby cry!” She kept that strong voice until her passing from a sudden illness on another
beautiful Fall day on October 9, 2024.
Addie’s early childhood years were in Dillon, Montana and she loved riding her bike to swimming lessons
and around town, playing with friends and enjoying the beautiful landscapes of Montana. Addie moved
to Prineville, Oregon in 1987 when her father was relocated for work. She made new friends right away
and she also met the love of her life, Monte Demaris; she just did not know it. Addie enjoyed her high
school years, playing volleyball and basketball. She graduated from Crook County High School in 1993.
She went on to attend Bassist College in Portland, Oregon and after some adventures she returned
home to Prineville. On yet another beautiful Fall Day in 1996, she was at the Cinnabar in Prineville and
there she caught the eye of Monte. He would say he had to pursue her, but they were best of friends
right from the start. They were married on October 2, 2004 on the Oregon Coast, which is where they
have made their home for the past 28 years.
Addie had a big heart, and she was always watching out for people (and animals) when they needed an
extra voice to support them. She was a Patient Experience Coordinator for Samaritan Communities
Hospitals at the time of her passing, and was one of those people who had the rare opportunity to make
a career of her innate gifts. She will be missed her co-workers where she was known for her humor,
passion and sassy comments.
Addie loved boating, rock hounding, fishing, camping (aka glamping in a giant tent with a giant air
mattress), picnicking, art, reading and traveling. She had the opportunity to travel with her mom, Mary,
to Savannah, Georgia, and New Orleans. Monte took her to visit Fiona the Hippo at the Cincinnati Zoo
and she and Monte cruised to Alaska in 2023. Most recently she made the long train trip to Malta,
Montana to reconnect with her roots at the family ranch with her parents. She loved the holidays,
especially Halloween. She decked out her house in witch decorations and celebrated her birthday all
month long. Her perfect day would have been fireworks on Halloween after a walk on the beach while
looking for rocks with Monte and their beloved dog, Pepper.
She is survived by her husband Monte Demaris of Depoe Bay, Oregon; parents Dick and Mary Cosgriffe
of Prineville, Oregon; brother Kipp (Missy) Cosgriffe of Damascus, Oregon; Aunt Kaja Guttormson of
Portland, Oregon; nephew Perry Cosgriffe of Redmond, Oregon and niece Karly Cosgriffe of Damascus,
Oregon.
Donations in Addie’s memory may be made to the local Humane Society of your choice.

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