Josephine "June" Ptak of Buffalo, NY, passed away on May 31, 2021 in San Mateo, CA at age 88. Beloved wife of Eugene Ptak and late Robert Kostelny; sister to late Richard Lysek; dearest mother of Robert (Terri) Kostelny, Kenneth (Brenda) Kostelny, Cheryl Zuffi, Maryellen (Leonard) Renzo; beloved grandmother to Justin Kostelny, Dana (Justin) Hess, Marta Kostelny, Joshua (Bridget) Renzo, Carley Renzo, Austin Zuffi, and Adam Zuffi; great grandmother to Cecelia Hess, Juniper Hess, Rylee Renzon and Kayla Renzo. June loved her family more than anything else and always put their needs before her own. She retired from American Optical, Leica Corp. The simplest pleasures in life, nature, animals, flowers, birds, time with her rosary, ad her grandkids brought great joy to her. A loyal Buffalo Bills fan. A Memorial Mass will be held at a later date