John “Jack” Louis Jantzen,  88, passed away on Feb. 12, 2026, at his farm in rural Darlington.

A visitation for family and friends will be held Friday, Feb. 20, from 3 to 6 p.m. at the Erickson Funeral Home in Darlington. A private family memorial service will be held at a later date, with burial at Union Grove Cemetery in Darlington.

A complete obituary is in the February 18, 2026 issue of The Platteville Journal.