Port of Galveston Port Arthur. Some businesses threatened to pull out of Galveston completely if the port wasn't reopened. Governor William P. Hobby declared martial law and sent the Texas National Guard to take control of the city and the port. The city was under martial law until January 1921, when the longshoreman agreed to return to work for a salary increase that was less than they had sought. Later that decade, the port of Galveston became a major sulphur exporter. As the oil industry expanded in Texas, no pipelines were built to Galveston. The Intracoastal Canal opened in 1933. For several years
Port of Galveston island's grade. As a result, the port was now considered a deep-water port and was able to handle larger ships. By the time World War I began, Galveston "was the leading cotton port in the world, the third largest exporter of wheat, and an important sugar import center." The port also became a major immigration center, with almost 50,000 people entering the country between 1906 and 1914. In March 1920 local longshoreman called for a strike, seeking a wage increase and recognition of their union, the International Longshoreman's Association. Some of the port traffic was diverted to the Port of