Robert J. Joachim, 91, a former longtime Concord resident, died at Life Care Center in Sullivan, Missouri on Monday, December 30, 2019. He was the beloved husband for 52 years of the late Patricia R. (Hession) Joachim who died in 2003. Born on January 2, 1928, he was the son of the late Alphonse and Hilda (Efverman) Joachim. He was raised and educated in Fitchburg, before pursuing a Master's degree in Engineering from Northeastern University in Boston. For over thirty years, Mr. Joachim was an Engineer for Raytheon. He served as past Grand Knight of the Concord Knights of Columbus, and loved playing cribbage, bridge, softball, golfing, and bowling. He especially took pride in his collection of home movies, and enjoyed traveling with Pat around the world, including to Ireland, Rome, and Africa. He leaves behind four children, Gregory Joachim and his wife Ellen of Lunenburg, Jeffrey Joachim and his wife Lynn of Concord, Monica Johnson and her husband Tom of Littleton and Missouri, and Cynthia Cleary of Acton. He is also survived by 15 grandchildren, 20 great grandchildren, and one sister, Carol Brissette. He was also the brother of the late Raymond and Paul Joachim. Family and friends will gather for visiting hours on Monday, January 13th from 4 to 7 pm in the Dee Funeral Home, 27 Bedford Street, Concord Center. His funeral will be held on Tuesday, January 14th at 9:30 am from the Dee Funeral Home, followed by a funeral Mass at 10:30 am in Holy Family Parish, Monument Square, Concord Center. Burial will follow at St. Bernard's Cemetery in Concord. Contributions in his memory may be made to the Alzheimer's Association, 309 Waverley Oaks Road, Waltham, MA 02452 (www.alz.org) or to the American Cancer Society, 3 Speen Street, Framingham, MA 01701 (www.cancer.org). Arrangements are under the care of Dee Funeral Home & Cremation Service of Concord.