FORT WORTH — Oletha McFarland, 86, passed away Thursday, May 7, 2009.   Funeral: 11 a.m. Tuesday in Mayfield Kiser Funeral Home Chapel. Interment: 1 p.m. in Annetta Cemetery. Visitation: 6 to 8 p.m. Monday at the funeral home.   The family wishes to express deepest appreciation to the wonderful nurses, caregivers and doctors of Vitas Hospice.   Survivors: Daughter, Janice Hope; sons, Randy and David McFarland; grandchildren, Shelley Ramirez, Julie Hughes, Christel Wilson and Jessica McFarland; great-grandchildren, Cody, Alexis and Allison Ramirez, Isabella Hughes and Olivia and Alexis De La Giraudiere; and numerous other extended family and friends.