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Robert Busby Williamson died peacefully at his home on March 7, 2017, at the age of 74. He was born in Houston, Texas, to the late Wilma and James D. Williamson II. Robert will always be remembered for his intelligence and sense of humor. The most precious thing in his life was his family. Robert graduated from Newman High School in New Orleans, Louisiana, and furthered his education at Louisiana Tech University where he earned a mechanical engineering degree. He spent his entire 30+ year career working for Texaco where he retired in 1995. Robert leaves behind many loved ones to cherish his memory including his wife of 43 years Mary Ann Williamson; daughters Julia K. Williamson and Laura W. Zimmerman (Brandon); son Michael N. Williamson; grandchildren William, Mary Grace and Caroline Zimmerman; brothers James D. Williamson III and Dale T. Williamson; and numerous nieces, nephews, other relatives and dear friends. The family wishes to extend their sincere appreciation for the care that was given to Robert by Passages Hospice. In lieu of flowers, the family requests masses be said for Robert. A gravesite interment of ashes will be held at 1 p.m. on Saturday, March 11 at Grove Hill Memorial Park in Dallas, Texas.