Clarence R. "Cy" Fahnestock, 95, of Peoria, IL and formerly of Washington, IL passed away peacefully at his home in Lutheran Hillside Village at 6:01 am, Wednesday, May 26, 2021. Born on October 2,1925 on the family farm in Manheim, PA to Clarence D. and Grace Rudy Fahnestock, he married Kathleen "Kay" Robb on July 12, 1952 in New Bloomfield, PA. She survives. They enjoyed over 68 years of life together. Also surviving are two daughters: Catherine (Phillip) Nixon of Mundelein, IL and Jennifer (Brian) Lancaster of Alpharetta, GA and five grandchildren, Stephanie (Jacob) Stoll of Chicago, Christina (Chad) Horton of Boca Raton, FL, Bradley Nixon of New Haven, CT, Grant (Olivia) Lancaster of Sandy Springs, GA, and Brie Lancaster of Sandy Springs, GA, and one great-granddaughter, Carter Horton. One brother, Luke Fahnestock, and several nieces and nephews also survive. Cy served with the US Eighth Army Commanding General's Military Police Unit in Japan. He earned his BS and MS degrees in Agricultural Engineering from Pennsylvania State University in 1951 and 1952. An officer of Alpha Zeta fraternity, he also was a charter member of the Penn State Coaly Society, staff writer and editor of several campus publications and was listed in "Who's in the News at Penn State." Prior to entering the full-time work force, Cy had a variety of job experiences including custom harvesting crewman, iron foundry worker, chocolate processor, longshoreman in Valdez, AK, and surveyor and roadside construction crewman on the Alaskan Highway. Following a period with Doane Agricultural Service in St. Louis, he joined the US Department of Agriculture at the Experimental Station in Palmer, Alaska and the University of Alaska in Fairbanks. In 1955, Cy started working at Caterpillar Tractor Co, Inc. at the Proving Grounds in Peoria. He moved from there into various research development and marketing positions, retiring in 1987 after 32 years with the company. Cy had been a member of the American Society of Agricultural Engineers and Society of Automotive Engineers. He served as the president of the Washington Grade School District #52 School Board and of the Washington United Fund Board, and was a member of the Washington Toastmasters Club. He was also a proud member of the Penn State Alumni Association. A member of the Washington Presbyterian Church since 1956, Cy served a number of terms as elder and member of Session, including terms as Stated Clerk and Treasurer. He also volunteered at Proctor Hospital for 10 years. Cy enjoyed many different hobbies: hiking, RVing, traveling internationally, golfing, bowling, square dancing, and playing bridge. He also gardened into his 90's. He was a loyal fan of the Nittany Lions at Penn State where he was introduced to Kay in 1948. Cy was a devoted husband, father, grandfather, and friend who will be greatly missed. After a family graveside burial at Glendale Cemetery in Washington, visitation will be held from 2-3 pm Saturday June 5 at the Washington Presbyterian Church. A memorial service will follow at 3:00 pm, with Rev. Dr. Linda Philabaun officiating. Deiters Funeral Home and Crematory in Washington are assisting the family with arrangements. In lieu of flowers, memorials may be made to the Salvation Army, Lutheran HIllside Village Endowment Fund, or to ChildFund.org.