Saturday, for the first time in the history of Galveston County, an African-American woman was elected mayor. Geraldine Sam, 57, a lifelong resident of La Marque and an educator, edged two challengers to take her place in history by the narrowest of margins. “I cannot even describe how I feel,” Sam said, while celebrating with family and friends at a restaurant. “I was trying to eat earlier, and I can’t even eat. It’s amazing. Just awesome.” Sam received 355 votes, outlasting challengers James Osteen, 316 votes, and Bill Charbonneau, 289 votes, according to complete, unofficial results. Sam, who will serve...