John L. G. Leffer, 87, of Gurnee passed away peacefully on Tuesday, February 10, 2026, after a long illness. He was born on Wednesday, August 31, 1938, in London, England to the late Fredrich Anno Wilhelm and Dorothy Olivia Soehrens.
John graduated from Colorado State University. He worked in sales for 27 years, and was a proud employee at Highway 41 Storage in Park City. He also enjoyed antique cars.
He is survived by his loving wife of 27 years, Fran Leffer; and many friends at The Shanty and Highway 41 Storage.
Services and interment are private. In lieu of flowers, you are welcome to send donations to his wife, Fran Leffer, at 5355 David Court, #B, Gurnee, IL 60031.
Arrangements entrusted to Sambrano Funeral & Cremation, Gurnee, IL. Please sign the online guestbook at LauraSambranoFunerals.com; 847-571-7719.