Margo Martindale: Margo Martindale. Actress: August: Osage County. Margo Martindale was born in Jacksonville, Texas, to Margaret (Pruitt) and William Everett Martindale, a lumber company owner and dog handler. She is the youngest of three children and the only daughter. Margo attended Lon Marris College, later transferred to University of Michigan at Ann Arbor, and did a summer study at Harvard University. She made her film debut appearance in Days of Thunder...
