Jack Sylvester

Sept. 7, 1936 - June 8, 2024

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Jack Sylvester, 87, of Normandy Park, WA, died on June 8, 2024. Jack (John Robert) Sylvester was born in New London, CT, to Agnes and Joseph Sylvester on September 7, 1936. He graduated from the University of Connecticut and the Naval Officer Candidate School in Newport, RI. During his time in the US Navy, Jack was based in Turkey on the Black Sea and in Bremerton, WA. After accepting a job offer from The Boeing Company, he moved to Seattle and worked as an aerospace engineer and manager for more than 35 years. In Seattle, Jack met Sandra Shepard and they were married in 1965. Together, they lived in Normandy Park, WA, for over 55 years, raising two kids, caring for four grandchildren and creating a beautiful and greatly admired garden. They took road trips all over the US and Canada. Any trip with Jack was a great adventure. He played golf with the Rovers Golf League for over 50 years and cherished the many friendships he made. He loved games and puzzles and enjoyed playing duplicate bridge. A skilled craftsman, he was always available to his family and friends to build a fence, playhouse, deck, dock or shed and was a master at tiling and bricklaying. If you had a project, he was there the next day, his car packed with tools. Jack was the most playful, patient and fun dad and grandpa, always coming up with games or scavenger hunts, building box houses, digging massive holes in the sand and making everyone laugh. Jack was dearly loved by his wife, Sandra; his children, Michael (Christina) and Julianne (Roberto); his grandchildren, Corbin, Jake, Claire and Jack; his brother, Bill (Linda); and his niece and nephew, Jessica and Vincent. Jack's life will be celebrated by his loved ones at a private event. To honor Jack, his family asks that you please consider making a contribution to the University of Washington Memory & Brain Wellness Center's Alzheimer's Disease Research Fund ( and share a memory of him below.


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Earth specializes in soil transformation, an environmentally-friendly alternative to burial and cremation. Over a 45-day process, we gently transform a body into nutrient-rich soil. We then send this soil to our local conservation land where it’s used for restoration projects such as reforestation and nourishing challenged ecosystems.

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