«The International Railways in Guatemala and Salvador». The Times(en inglés) (Londres). 21 de octubre de 1912. Consultado el 14 de noviembre de 2023. «the International Railways, for the chief port of the railway on the Pacific is La Union, a harbour which is not exposed to the Pacific, being located on an arm of the Gulf of Fonseca. La Union is the only good harbour on the Pacific coast between Mexico and Costa Rica, all the loading and discharging of the present trade of the Pacific coast of Guatemala and Salvador being carried on by lighterage in open roadsteads».