"The National Order of Trench Rats was conceived by a group of disabled World War I veterans who were patients in the United States Public Health Service Hospital No. 54 located at Arrowhead Springs, California. Because of the shortage of beds following WWI, this hospital, like many others, had been converted out of a building formerly used for other purposes. This particular building in which the hospital was housed had been a well known hotel located on the side of the mountain about seven miles from the city of San Bernardino. The name “Trench Rats” was adopted as it is symbolic of the rats which the World War I veterans encountered in the trenches in France."
For a complete history of this Veterans Organization, please visit their website's History page.