Mike Sieker

George Michael “Mike” Sieker, of St. Peters, Missouri, passed away Monday, April 10, 2023 at the age of 63. Beloved husband of Donna Sieker; devoted father of Shannon (Joseph) Unger and Joshua Sieker; cherished son of the late George (Tina) Sieker and the late Lela Sue (the late Carl) Smith;  dear brother of Theresa (William) Ekiss, Cindy (Steve) Gambino, Sara (Dan) Grzina and Jon (Grace Anne) Sieker; Mike was also a dedicated uncle, great-uncle, cousin, Godfather and friend to many.  

Mike had a fun and loving personality. He was always joking and smiling, living and enjoying family gatherings every weekend. He loved music and singing along with the classics. Pool side, with a cigar in hand, “life is good today”. This was a motto he lived by. 

As an avid hunter, Mike enjoyed the outdoors and embarked on many big game hunting adventures. He spent countless hours on Mark Twain Lake boating and fishing, he truly loved all things outdoors. A St. Louis native, Mike was a fan of the St. Louis Cardinals, Blues, and enjoyed watching NASCAR with his East Coast Kennon family.  

Mike retired from General Motors after 30+ years of service. He also owned his own HVAC business, SEEKTEK, which was always more like a hobby to him. He enjoyed building this business with his son, Josh, brother-in-law, Bob, and close friends.  

Mike was dearly loved and will be greatly missed by all who knew him. 

In lieu of flowers, please make contributions in Mike’s name to the Missouri Department of Conservation.