Martha Ann (Van Slyke) Groff On Thursday, August 7, 2014 age 69 of Fenwick Island, DE formerly of Irwin, Pa. Beloved wife of William W. Groff. Loving mother of Brad W. Groff of NY and Jenna (Ryan) Knapp of Pittsburgh, Pa. Sister of Donald Van Slyke of Erie, PA. Also survived by her grandchildren Tyson and Brooklyn Knapp. Friends will be received Sunday, August 10, 2014 from 3-6pm at the English Funeral Home & Cremation Services, Inc. 378 Maryland Ave, Oakmont, Pa 15139. A Funeral Service will be held on Monday, August 11, 2014, 11am at St. Johns Lutheran Church, Addison Pa, where a visitation will be held 1 hour prior to the service. Interment to follow in Addison Cemetery, Addison Pa. Local funeral arrangements handled by Humbert Funeral Home, Confluence, PA. In lieu of flowers memorial contributions may be made to: Penn State Dance Marathon (THON) www.THON.org. Online condolences may also be made to www.english-funeral-home.com.