John S. Blair, 56, passed away on Friday, February 27, 2026. He was born on April 7, 1969, in Appleton, the son of Stephen and Jayne (Jansen) Blair. John was married to Jenny Marie Herman on June 15, 1996, at Mount Calvary Church, Kimberly. He had a successful career as a mechanical engineer. John enjoyed owning muscle cars and driving fast, flying drones, and building model planes and rockets. He also had an unwavering love of God. His cooking and experimenting with food and pie making will be greatly missed.

John is survived by his wife: Jenny; twin sons: Alex (fiancé Erick Silva) Blair and Nick Blair; parents: Stephen and Jayne Blair; brothers: Jim and Mark Blair; a brother-in-law: Joe (Susan) Blair; and many nieces, nephews, other relatives and friends.

John was preceded in death by his father- and mother-in-law: John and Annmarie Herman, and a sister-in-law: Amy (Randy) Wyman.

A private family service will be held.