John Gordon Knaack

Tell your own story about John

Memories and condolences can be left on the obituary at the funeral home website.

How you can show support

Get email updates whenever changes are made.

Send flowers

Consider sending flowers.

Plant trees

Honor them by planting trees in their memory.

Share this page

Invite other friends and family to visit the page.

Max A. Sass & Sons Funeral and Cremation Greenridge Chapel - Greenfield

Posted events

February 15, 2026

Mar

Celebration of Life

9:30 a.m. - 11:30 a.m.

Wisconsin Memorial Park Family Center

13037 West Capitol Drive, Brookfield, WI 53005

Mar

Memorial service

11:30 a.m.

Wisconsin Memorial Park Family Center

13037 West Capitol Drive, Brookfield, WI 53005

Max A. Sass & Sons Funeral and Cremation Greenridge Chapel - Greenfield

Posted an obituary

February 15, 2026

John Knaack Obituary

August 12, 1942 - February 13, 2026John Gordon Knaack, 83, passed away peacefully on February 13, 2026, in Greendale, Wisconsin.John was born on August 12, 1942, in Milwaukee to Gordon and Angeline (Donner) Knaack. He grew up the oldest brother... Read John Knaack's Obituary