John Thacker, 89, St Onge, died May 15, 2026, at the Spearfish Canyon Healthcare Center.

John was born March 29, 1937, in Newcastle WY, to Fred and Mary (Dibble) Thacker. He grew up in the Deadwood area and later moved to Spokane, WA, with his family. John enlisted and proudly served his country in the United States Navy for four years, spending much of his service aboard a submarine, an experience he carried with quiet pride throughout his life.

After his military service, John returned to the Black Hills of South Dakota, a place he always considered home. On August 8, 1959, he married the love of his life, Darleen Lester, beginning a devoted marriage of 67 years. Together, they raised three daughters.

John was a professional ski instructor at Terry Peak Ski Area for many years, sharing his passion and skill with countless students. In 1984, John and Darleen established Video Pro, which they operated until their retirement in 2005.

Throughout his life, He enjoyed hunting, camping, fishing, and was an avid skier and windsurfer, John loved music and could play most instruments by ear. He was known for his charismatic personality, John could talk to anyone and genuinely enjoied connecting with people. He took great pleasure in leaving others with a smile, a trait that defined him and endeared him to many.

John is survived by his wife of 67 years, Darleen, his daughters Linda (Woody) Hover, St Onge, Lorelei Rosales, Billings, MT and Lisa Thacker, Billings, MT, eight grandchildren and eighteen great-grandchildren.

Graveside services with military honors will be held at 2:30 pm on May 21, 226 at the Black Hills National Cemetery, Sturgis for the family. A Celebration of life for all friends will follow at the St Onge Community Center in St Onge from 3:30-5:00 pm.

John will be deeply missed and lovingly remembered.