Catherine Janet “Cathy” (Mahoney) Castle Obituary, EDMONTON, Alberta — Catherine Janet “Cathy” Castle, a longtime Edmonton nurse, devoted mother, grandmother, daughter, sister and friend, passed away on August 9, 2026, at the age of 69.

Born on September 26, 1956, Cathy lived a life shaped by compassion, family and service to others. Her passing has left her loved ones mourning a woman whose warmth and generosity were reflected both in her nursing career and in the relationships she treasured throughout her life.

For those who knew Cathy personally and professionally, her memory will remain connected to her years of caring for patients, her devotion to family and the happiness she found during time spent at Calling Lake.

Remembering Catherine Janet “Cathy” Castle

Cathy’s life centered around people.

Whether she was caring for patients during difficult moments, spending time with her grandchildren, gathering with relatives or enjoying an evening with friends, she valued the relationships that gave her life meaning.

Her family remembers a woman whose generosity and caring personality extended naturally to those around her.

Those qualities also became central to the career Cathy chose and the many years she dedicated to nursing.

A Nursing Career Dedicated to Caring for Others

Cathy spent much of her professional life working as a nurse, including many years at the University of Alberta Hospital Burn Unit.

Working in a burn unit meant caring for patients experiencing some of the most physically and emotionally challenging periods of their lives. Cathy brought compassion and dedication to that responsibility throughout her career.

Nursing was more than simply her profession. It reflected the concern for others that was an important part of who she was.

Her years of service created connections not only with patients but also with the colleagues and healthcare professionals who worked alongside her.

Those who encountered Cathy through her nursing career became part of a legacy built through care, patience and a commitment to helping others.

Calling Lake Held a Special Place in Cathy’s Heart

Away from her professional responsibilities, some of Cathy’s happiest memories were created at the family’s cabin at Calling Lake.

The peaceful surroundings provided a place where she could enjoy the simple things that brought her happiness.

She loved fishing, picking blueberries, listening to music and playing cards with friends. More importantly, the cabin became a place where friendships and family relationships could flourish.

Time at Calling Lake was filled with conversations, laughter and experiences that became treasured parts of Cathy’s life.

Following her passing, the sunsets over Calling Lake have taken on an especially meaningful significance for her loved ones. The place where Cathy found so much peace and happiness will remain closely connected to memories of her.

Family Was Central to Cathy’s Life

Cathy is survived by her son, Rob (Jocelyn), and her beloved grandchildren, Natalie and Robson.

She is also survived by her mother, Velma, and siblings Patti (Floyd), Ken (Lise), Dennis and Carolyn.

Her extended family includes nieces and nephews Marc (Carrie), Danny (Victoria), Scott (Alyssa) and Christine (Darragh), along with great-nephews Heath and Reed, great-nieces Stevie, Jayden and Elowyn, cousins and many longtime friends.

Cathy was preceded in death by her first-born son, Brian, and her father, Laurence Mahoney.

The loss of a child is a profound part of any parent’s story, and Brian remained an important part of Cathy’s family and memory throughout her life.

A Devoted Mother and Grandmother

Among the roles Cathy held throughout her life, being a mother and grandmother occupied a particularly important place.

Her son and grandchildren were among those closest to her heart, and the memories they created together will remain an enduring part of the family’s connection with her.

Family gatherings, visits, conversations and ordinary moments shared over the years have now become especially precious.

For Natalie and Robson, those memories will help preserve the story of their grandmother and the love she brought into their lives.

Music, Friendship and the Simple Joys of Life

Cathy also found happiness in music and friendships.

One song with special significance was “Don’t Let the Sun Go Down on Me.” Following her death, the song has taken on an even deeper meaning for those remembering her.

Like the sunsets at Calling Lake, music can become closely connected with memories of people who are no longer physically present.

For Cathy’s family and friends, familiar songs, trips to the lake, card games and other traditions may continue to provide reminders of the experiences they were fortunate to share with her.

Her family has also expressed gratitude to Reverend Jim Corrigan for the friendship and support he provided during this difficult time.

Cathy Castle Memorial Service

Family members, former colleagues and friends will have an opportunity to gather in Edmonton to celebrate Cathy’s life and honor her memory.

The memorial service is scheduled for:

Friday, September 18, 2026, at 10:00 a.m.
Park Memorial Chapel
9709 111 Avenue NW
Edmonton, Alberta

The gathering will provide an opportunity for those whose lives were connected to Cathy to remember her, share stories and support her family as they mourn.

Anyone planning to attend should confirm the arrangements with the family or funeral home in case service details change.

Remembering Cathy Castle’s Legacy

Catherine Janet “Cathy” Castle leaves behind a legacy extending far beyond the years of her life.

It can be found in the patients she cared for during her nursing career, the colleagues who worked beside her, the friends who shared laughter and card games with her and the family members who experienced her love firsthand.

It also remains at Calling Lake, where fishing trips, blueberries, music and sunsets became part of the memories she treasured.

Above all, Cathy will be remembered as a woman whose life involved caring for others, professionally and personally.

Catherine Janet “Cathy” (Mahoney) Castle passed away at 69, but the love, memories and relationships she created will continue through her son, grandchildren, mother, siblings, extended family, friends and the many people whose lives she touched during her years in nursing.

May Cathy rest in peace, and may those mourning her passing find comfort in the memories of the life they shared with her.

Disclaimer

This memorial account is based on the information available at the time of publication regarding Catherine Janet “Cathy” (Mahoney) Castle. Details concerning her biography, surviving relatives and memorial arrangements should be confirmed through her family, official obituary or the funeral home responsible for the service. Memorial arrangements may change, and this article may be updated if additional verified information becomes available.