John Alvin Haack
John Alvin Haack of Foristell, MO passed away on September 19, 2026 of natural causes. He was born Sept. 20, 1950 to Alvin and Lucille (Schwantz) Haack in Plainview, MN.
He attended Immanuel Lutheran School through 8th grade and graduated from Plainview High School in 1968. After graduation, he attended Dunwoody College of Technology of Minneapolis, MN. He then joined the United States Air Force. He earned his Masters Degree at Purdue University in West Lafayette, Indiana. He began his career in Radar Modernization at The Boeing Company and earned many awards in that area. He enjoyed nature, acrylic painting, and writing digital music.
He is survived by his sister Joann (Doug) Meyer of Charleston, IL; sister Marjean (Jim) Hahler of Plainview, MN; niece Karen (Stan) Freeman of Matoon, IL: niece Abigail Hahler Larson of Rochester, MN; nephew Ryan (Kim) Hahler of Minneapolis, MN and Todd (Marie) Meyer of Richland, WA.
He was preceded in death by his parents, Alvin and Lucille Haack; and his sister and brother-in-law, Gloria and Wayne Schnell.
John will be remembered for his love and kindness for his family, nieces, nephews, and cousins. He will be missed.

