Irvin Thomas Mniszewski, 88, of Loveland, CO died September 6, 2011 at the Veterans Affairs Hospital in Cheyenne, WY. He was born April 30, 1923 in Chicago, IL to Thomas and Anastasia Mniszewski. He married Gertrude Ann Kazmierczak on August 21, 1948. He was a Prisoner of War during WWII, serving in the United States Air Force. He was a member of the Catholic Church and the Moose Lodge. He retired from Nalco Chemical after 25 years of employment. He is survived by his wife of 63 years, Gertrude Ann Mniszewski; children Kenneth Mniszewski of Loveland, Mark Mniszewski of Bend, OR and Joyce Frey and husband, David of Highland, IN; grandchildren, Jacob Frey and Simon Frey; great-grandchildren, Chloe, Amy, and Aiden Frey; brother, Richard Mniszewski of Frankfort, IL. He was preceded in death by his parents, Thomas and Anastasia Mniszewski; and siblings, Irene, Delphine and Edward. Those who wish may contribute to the Veteran's Affairs Hospital in Cheyenne, 2360 E. Pershing Blvd., Cheyenne, WY 82001. Cremation has taken place in Cheyenne, under the direction of Schrader Funeral Home.