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Dennis P. O'Keefe

January 30, 1940 ~ January 27, 2021 (age 80)


Dennis O'Keefe, age 80, of Hackensack, MN passed away at his home on Wednesday, January 27, 2021 after a long and courageous 2 year battle with ALS.

 He was born to Walter and Willo (Fried) O’Keefe on January 30,1940 in St. Paul, MN.  He earned a high school diploma from St. Paul evening school, Bachelor's degree in education from the University of MN, and masters degree from the University of WI River Falls.  Dennis taught mathematics for 31 years in the Minneapolis schools of Franklin Jr. High and Edison Sr. High. 

Dennis is survived by the love of his life Kathy Andert, his son Peter and his wife Christine along with their children Will, John, and Katie. He is also survived by his son Daniel and his wife Laurie along with their children Andrew, Oliver, Isaac, Anthony, Edward, Joanna and Maria. Dennis is also survived by many dear friends. He is preceded in death by his parents Walter and Willo, and his granddaughter Mary.

Dennis loved to fish, teach, play poker, and he loved the dogs that were part of his life over the years. He was proud of his and Kathy’s performances in the Leech Lake Walleye tournament placing in the top 20 three times and winning first place in 2013.  He loved to have a project. This included building and fixing things, trying new fishing spots, and in his retirement he even did calculus problems to stay sharp. He was a helpful, generous, and loving partner, friend, father, and grandfather. He will be missed.

Due to Covid, a private family Mass of Christian burial will be held. 


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