Fort Stockton Pioneer, Feb. 8, 2007 FORT STOCKTON -"I know how to learn to fit in," said Sue Grigsby, Physician's Assistant at Pecos County Memorial Hospital, "and that's what I want to do here." Grigsby became interested in the medical field while married to an optometrist for twenty years. She earned her P.A. designation with a specialty in geriatrics in August from University of Texas Medical Branch Galveston. She moved to Fort Stockton in January.