Dennis E. Flanagan

June 2, 1961May 6, 2019

On May 6th 2019, Dennis Edward Flanagan, loving father and husband, admired colleague, loyal friend, and all around good guy passed away at the age of 57.

Dennis was born on June 2nd, 1961 in Vancouver Washington, and spent much of his childhood in Shreveport Louisiana before moving back to Washington where he lived, worked, and played. On August 20th 1994, Dennis and Sue Flanagan were married, and together they raised their son Sean Patrick Flanagan.

Dennis was preceded in death by his Father Charles Edward Jr Flanagan and Mother Adeline Borroz Flanagan. He is survived by his wife Sue, his son Sean, his brother Mike, his sisters Cindy Flanagan Gordon and Megan Flanagan Henslee.

At risk of using an overused phrase, Dennis really was a renaissance man. A lover of wine, a world class technologist, an avid scuba diver, a great cook, a quick wit, a gracious entertainer, a father and husband, a mentor to many, a compassionate and humble leader, a critical thinker, a finder of beauty, a lover of art, and a friend to all.

Kind, caring, principled, funny, hard-working, smart, loyal, persistent, loving, adventurous, honest, and a heck of a fighter until the very end. That is Dennis Flanagan.


No services are scheduled at this time. Receive a notification when services are updated.


Dennis E. Flanagan

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Marion Preston Portenier

May 16, 2019

I first met Dennis and his family in July 1974 when we moved into the house two doors away on 99th Street. Dennis and family became good friends and neighbors for many years. I will always remember you seldom saw Dennis without the “group” including my brother Bill, Mike, Mike Giammateo(sp?), Jon VanAtta, and others who I can see I my mind but I’m sorry names are long gone. Dennis had a great sense of humor,and always up for fun. He was a good friend to Bill and cared deeply for his family. He will be missed but never forgotten. Rest In Peace Denny and give your mom a hug for me. I miss the trips she and I used to take to Port Angeles together. To the family, please know you are in our thoughts and prayers.