Preston Murdoch Geren Jr. passed away peacefully on Wednesday, June 12, 2013. Service: 10 a.m. Saturday at St. Andrews Episcopal Church. Interment: Greenwood Memorial Park. Pallbearers will be his grandsons and grandsons-in-law. Memorials: Should friends desire, memorials may be given to Streams and Valleys, Inc., 2918 Wingate St., P.O. Box 101373, Fort Worth, Texas 76185-1373.