Theresa Los, 97, of Elkhorn, WI died Tuesday October 9, 2018 at her residence. She was born May 18, 1921 in Burum, Netherlands the daughter of the late Bart and Agnes (DeVries) VanderVeen. She immigrated from Holland when she was thirteen years old. On April 18, 1940 she was united in marriage to Francis Los. He died December 1, 1944 in France during WWII. Theresa was a member of the Delavan Christian Reformed Church, a devoted homemaker, mother, grandmother, great-grandmother and great-great grandmother. She enjoyed knitting, art, Scrabble, music, travel and reading. Time spent with her family meant the world to her. Theresa's strong faith in God and saving relationship in Jesus Christ is what got her through the trials and joys of life. She will be deeply missed by her six grandchildren: Susan (Curt)Knudtson of Elkhorn, Mark (Lisa) VanDyke of Elkhorn, Laura (Gary) Humphrey of Lake Geneva, Jennifer VanDyke of Delavan, Megan (Patrick) McCormick of Elkhorn and Rachel Hamilton of Naples, FL. Twenty three great-grandchildren and six great-great grandchildren, son-in-law: Alan VanDyke of Elkhorn, brother: Gus (Jan) VanderVeen of Holland, MI and a sister-in-law: Dorothea VanderVeen of Alto, MI and by many nieces and nephews and a host of other relatives and friends. She was preceded in death by her husband of four years, Francis, two daughters: Joanne VanDyke and Elaine (Charles) Hamilton, two brothers: Howard and John VanderVeen and her sister Angie Termaat. Gathering of family and friends will be held 9:00 AM to 11:00 AM followed by a memorial service at 11:00 AM Saturday October 13, 2018 at Delavan Christian Reformed Church 850 Oak Street Delavan, WI with Rev. Timothy Kooiman officiating. Private family burial will be at Spring Grove Cemetery Delavan, WI. Memorials may be made in Theresa's name to Delavan Christian Reformed Church. On-line guestbook is at www.haaselockwoodfhs.com. Arrangements completed by Haase-Lockwood & Associates Funeral Homes and Crematory of Elkhorn, WI.