Born March 8, 1936 in Oakland Township, Pennsylvania she was the daughter of the late Earl Schreffler and Ruth Ann Dunn Schreffler Catalano.

Mrs. Dillon was a member of Trinity Presbyterian Church in Butler and also the Women's Bible Study Group at Trinity Presbyterian Church. She belonged to the Maqueda Chapter # 421 Order of the Eastern Star and Good Samaritan Shrine # 32. Pat was a homemaker, and she enjoyed reading, cooking, working crossword puzzles, and enjoyed spending time with her friends and family.

Mrs. Dillon is survived by her husband, William D. Dillon, whom she married on March 18, 1961; one son, David S. and his wife, Rosemary Dillon of Butler; two daughters, Denise M. and her husband Shane Zinn of Prospect and Dina E. and her husband Peter Donaldson of Butler; four grandchildren, Amanda Dillon and Seth Dillon, both of Butler, and Chase Zinn and Cole Zinn, both of Prospect; and four nieces and six nephews.

Friends will be received at the Thompson-Miller Funeral Home, Inc., 124 East North Street, Butler, Pennsylvania on Friday, January 15, 2010 from 7 to 9 p.m. and Saturday, January 16, 2010 from 2 to 4 and 7 to 9 p.m.

Services will be held at the Trinity Presbyterian Church 107 Staley Avenue, Butler, Pennsylvania on, Sunday, January 17, 2010 at 2 p.m. with Pastor Jeff Harris of Trinity Presbyterian Church officiating. Interment will follow in Gruenwald Cemetery.

In lieu of flowers, memorial contributions may be made to Trinity Presbyterian Church 107 Staley Avenue, Butler Pennsylvania, Pennsylvania 16001.