Shirley passed away unexpectedly on January 1, 2021, at her home. She was born July 12, 1939, to Rosco and Dorothy (Nichols) Bixler. Shirley retired from Parker NWL. She enjoyed her monthly lunch dates with her sisters and Sunday breakfasts with her friends. Shirley loved watching Hallmark movies. She is survived by her son, Kenneth Jr. (Jennifer) Knapp of Allegan; her four sisters, Helen (Joe) Roglic, Barb Bixler, Pat Schero, and Nancy (Richard) Waite and several grandchildren, great-grandchildren and great-great-grandchildren. Shirley was preceded in death by her parents; first husband, Kenneth Knapp Sr.; second husband, James Sinkler; daughter, Julie Loss and son-in-law, James Loss; a sister, Ruth Holtz and great-grandson, Kashton Knapp.