Charles M. Robinson III (born May 25, 1949) is an American author, illustrator, and adventurer. He is a history instructor with South Texas College in McAllen, Texas, and was a member of the 2010 Oxford Round Table. He is a graduate of St. Edward's University and the University of Texas–Pan American.
He has written several books that deal with the American Old West, as well as the American Civil War and the Spanish conquest of Mexico. He has also written magazine articles on seafaring, sailing, hunting, guns, and antique automobiles. In 1993 he was awarded the T. R. Fehrenbach Book Award by the Texas Historical Commission.
Robinson was born in Harlingen, Texas, to Rosalyn (née Crispin), a public school teacher, and Charles M. Robinson Jr., a Presbyterian minister. When he was 13, he climbed alone from the Paseo de Cortes to the snow line of Popocatepetl volcano, in Mexico, turning back when he realized he couldn't cross the glaciers without a guide. Two weeks later, he was investigating the 2,800-year-old pyramid of Cuicuilco when a wall gave way, severely injuring his upper lip and jaw. He still has scars across his lip. At 17, he dropped out of high school and obtained a berth as a crewman on a Norwegian cargo ship. In that capacity, he was in Nigeria when the civil war broke out in that country. He worked on several ships serving Africa and northern South America, until a back injury and recurring malaria rendered him unfit for further service. After working two years in Scandinavia, he returned home, and worked as an aircraft mechanic. He has also raced sailing yachts, is a competent horseman, and enjoys back-country hunting and Austin-Healey sports cars. He has drawn on these experiences to give more depth to several of his books.
In 1971, he joined the staff of the Harlingen Valley Morning Star as a copyboy, eventually rising to city editor in 1979. He later worked as editor of the San Benito News, and the Weslaco, Texas, Mid-Valley Town Crier, while simultaneously continuing his education.
He was married to Perla M. Torres from 1974 until her death in 2004. He has one daughter. Robinson was a chain smoker for more than forty years, and in March 2008, his right lung was removed because of cancer. In June 2011, he suffered from respiratory arrest and spent five days on life support, prompting him to substantially curtail his activities. He currently resides in San Benito. A High Church Episcopalian, he is known for his strong religious views.