DARWIN, TEXAS. Darwin was on Farm Road 1472 and Santo Tomas Creek near the bank of the Rio Grande in northwestern Webb County. It was named for David Darwin Davis, the superintendent of the Cannel Coal Company that began mining locally in 1882. The community had a post office from 1896 to 1915. In 1914 the population of Darwin was 800, and it was a station on the Rio Grande and Eagle Pass Railroad. At this time Thomas Worsham was the community postmaster, and H. H. Jefferies was a cattle breeder in the area. By 1920 the area mines had declined greatly; they closed in 1939. The Darwin population in 1936 had dropped to seventy-five, and there was one business. By 1983 all that remained at the site was a cemetery.