Mark Frank, 95, died peacefully on Oct. 11, 2026 in River Forest. Born on Feb. 2, 1931 in Chicago to the late Jean and Bert Frank, he attended Austin High School, Chicago Teachers College, and earned a Master of Education degree from Loyola University Chicago, graduating in 1955. He worked in the Chicago Public School system and retired as the principal of the Brown School. He was also a real estate broker and developer in Oak Park.
An avid supporter of the Boy Scouts of America, having achieved the rank of Eagle Scout in 1947, he served as director at Camp Blackhawk on the Owasippe Scout Reservation, as well as director of the Avery-Coonley summer camps in Downers Grove in the 1960s and early 1970s.
Mark was preceded in death by his wife of 45 years, Irene Anne Kelly Frank with whom he raised his family. He was also preceded in death by his second wife, Irene Loomis Kelly Frank. Mark will be deeply missed by his children, Lawrence (Annette), Christine (Gregory), Mark (Constance), Kelly (Michelle) and Natalie (William), 10 grandchildren, and 13 great-grandchildren.
A funeral Mass will be celebrated at St. Luke Catholic Church, 7600 W. Lake St., River Forest, on Saturday, Oct. 24, at 10 a.m. with a celebration of his life to follow.