Age 95 of Oshawa Ontario, passed away peacefully with her daughter Debra by her side at Hillsdale Terraces on Monday, June 19, 2023.

Ilean was born on May 10, 1928 to parents Andrew and Ellen (Hird) Irwin in Cavan Ontario.

Grandparents Annie and Joseph Hird and Annie and William Irwin.

In 1948, Ilean met Layton Treen at a community dance and married soon after on March 26, 1949.

Ilean worked, for a short period, at the Quaker Oats and resigned as their children arrived; Linda, Debra, Ronald and Stephen. Ilean was predeceased by her husband Layton after 45 years of marriage in 1994 and her daughter Linda in 2018.

Ilean leaves cherished memories to her children, Debra (Ken) Wasiluk, Ron (Mary Ellen, 2017), Treen and Stephen (Linda) Treen. Beloved grandchildren Mark (Dawna), Matt (Becki), Treena, Kendra, Lanie, Kelly (Adrian), Alexandra (Steven), Zachary (Jenna), Taylor (Nick) and Karly (Chris), great-grandchildren Nathan (Mikayla), William (Kathleen), Elizabeth and Caleb, Jameson, Dimitri and Harper as well as a great-great-grandson Phillipe.

Ilean was a sister and predeceased by her 6 sisters and 2 brothers; Clifford, Myrtle (George), Ruby (Alec), Mable (Jimmy), Jane (Vic), Ione (Whip) and Loreen (Norm) and Laverne.

A celebration of life will be held in September with family and friends. Her final resting place will be with Layton at Little Lake Cemetery, Peterborough.

A special thank you from our family to all staff at Hillsdale Terrances, Sugar Trail, for their care and compassion shown to Ilean and our family during her final years.

With Love, rest in peace Mom xo.