Catherine “Cass” Kickler – Kocak, 67, of Butler passed away on Sunday, August 18, 2024, surrounded by loved ones after a fiercely fought battle with breast cancer. She was born in Pittsburgh on July 2, 1956, to the late John and Catherine (Wittig) Kickler. She graduated from the Pittsburgh Art Institute and was employed as a graphic artist in Florida. Cass was creative, artistic, loved animals, especially horses, and was generous beyond compare, with the best sense of humor. She loved to garden and create beauty. Cass is survived by her loving life partner, Lee Claus; mother of Matthew and Jarrad Kocak; sister of Janet (Robert Brown) Zottola, Paula (Tom) Duffy, John (Nina) Kickler, Dee (Jim) Krahe and Sheri (Mark) Graham; many nieces and nephews; and her loving rabbit, Thermie and her cat, Pete. All services were held privately through the SPENCER D. GEIBEL FUNERAL HOME & CREMATION SERVICES, 140 NEW CASTLE RD. BUTLER, PA 16001. WWW.SPENCERDGEIBEL.COM. A funeral Mass will be held at 11 AM on Friday, August 23, 2024, at St. Catherine of Sweden Catholic Church; 2254 Wildwood Rd. Allison Park, PA 15101.