Diane Simms, 71, of Port Arthur, Texas passed away Tuesday, December 22, 2015 at her residence. Diane was born December 15, 1944 in Port Arthur, Texas to Charles Lloyd Grantham and Margaret Barnes Grantham. She was a lifelong resident of Port Arthur and a retired Walmart Customer Service Representative with 14 years of service. She was a member of the Baptist faith and a 20 year member of Beta Sigma Phi. Funeral services will be held Monday, December 28, 2015 at 10:00 a.m. at Levingston Funeral Home in Groves. Burial will follow at Oak Bluff Memorial Park. Visitation for family and friends will be from 6:00 to 8:00 p.m. Sunday, December 27, 2015 at the funeral home. Surviving relatives include her mother, Margaret Roberts and step-father Charles Roberts of Cedar Park, Texas; sons, Shane Singletary and wife Michelle of Port Arthur, Texas; Shawn Singletary and wife Tonya of Bridge City, Texas; sisters, Margie Adams and husband John of Fort Walton Beach, Florida; Cynthia Trahan and husband Michael of Cedar Park, Texas; brother, David Grantham and wife Sharon of Burkeville, Texas; grandchildren, Heather Singletary, Joseph Festa, and Jessica Garrison; former husband and friend, Raymond Singletary and many nieces and nephews. Friends wishing to make memorial contributions may send them to: Wheelers for the Wounded, Texas Chapter, Attn: Dan Engerran, 147 Wood Manor, Sour Lake, TX 77659