Sidney Bernard Zwick, 95, passed away peacefully at the Illinois Veterans Home-Manteno on August 27, 2021 in the company of loving family members, after a long and full life. Sidney was born on July 9, 1926 to Harry and Helen Zwick in the town of West Frankfort, IL. In his early teens, he moved to Evanston, Illinois. Sid graduated from Evanston Township High School and began college at Northwestern University in Evanston. Before graduating, he entered the U.S. Army during WWII and was stationed at Ft. Lewis, near Seattle, WA. After service, he returned to Northwestern where he completed his degree. Later, in the mid-1960’s he received a Masters Degree from the University of Chicago. He was the Executive Director of the American Youth Hostels (AYH), Chicago chapter for a number of years, mainly during the 1950’s. A devoted outdoorsman, he organized and led many bicycle, canoe and ski trips both for AYH and later for high school students. He became a history teacher in the early 1960’s, where he taught at Crane Tech Public High School in Chicago for 28 years. He was passionate about education and community service and devoted time both in and out of the classroom to his many students. In addition to his teaching career, he and his wife operated an art gallery in downtown Evanston for 20 years. He met his wife, Rosemary, through AYH, and their courtship was often carried out on a tandem bicycle. They were married on December 26, 1948 in Evanston. They both loved travel and ventured on many trips together, including a bicycle trip across Europe in 1949. As an avid amateur photographer, home movie-maker, and videographer, he recorded that trip, many more family events, family interviews, and his adored grandchildrens’ activities as they grew up. In 1957 they purchased the home in Evanston where they raised four children and where he lived until 2016. After retirement, he started a small local paper, “The Beacon,” which he published with Rosemary’s help for a number of years. Sidney was predeceased by Rosemary and four of his five siblings. He is survived by his sister, Elaine Sensiper; his children Somara (Paul) Madalinski, Marissa (Dan) Hopkins, Andrew Zwick, Stephen Zwick; his grandchildren, Nik (Junlah) Madalinski, Max (Leigh) Madalinski, Torin Hopkins, and Kailey Hopkins; and three great-grandchildren, Savanh, Hugo, and Santi Madalinski. A private graveside service will be held at 10:30 a.m.(CDT) on Thursday, September 9, 2021. For streaming and more information please visit the website of Chicago Jewish Funerals at: www.chicagojewishfunerals.com In lieu of flowers, please consider a donation in Sidney’s memory to the NEA Foundation (National Education Assoc. Foundation: www.neafoundation.org) or HI - USA (Hosteling International: www.hiusa.org). Arrangements by Chicago Jewish Funerals - Skokie Chapel, 847.229.8822, www.cjfinfo.com.