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On Monday July 21, 2025, with his family by his side, at Marshall Gowland Manor in Sarnia, at the age of 94. Beloved husband of Sharon (n. Nisbet) for 67 years. Loving father of John Sinclair and his wife Marion, Lynn Sinclair, and Nancy Cormier. Cherished grandpa of Jon Sinclair and his wife Suzanne, Colton Sinclair, Nathan Sinclair and his friend Rachel, Heather Mason and her friend Brandon, Jennifer Seabrook and her husband Jake, Taylor Sinclair-Wilde and her friend Matt. And great grandpa of Brayden, Bryleigh, Kyla, Kaden, Cobyn, Calliana, Declen, Gemma and Brenna. He will be missed by his brother Thomas Sinclair, and James Sinclair and his wife Florence, and many nieces and nephews. Predeceased by his sister Jean Scott, and sister-in-law Joan Sinclair. John was a crane operator and long-time member of Local 793 Operating Engineers. Cremation has taken place. Remembrances and condolences may be expressed to the family online in “John’s Guestbook” at mccormackfuneralhomesarnia,com.
