On April 6, 1917, the U.S. Congress declared war on Germany and officially entered World War I. At the time, soldiers and sailors with Spanish surnames or Spanish accents were sometimes the objects of ridicule and relegated to menial jobs.
However, Hispanics continued to join the military and serve their nation.

Captain Robert F. Lopez retired from the navy in 1911.
During World War I, he was recalled to active duty and given the rank of commodore (equivalent to a one-star admiral rank, typically used during wartime) to command the Mare Island Naval Shipyard.

Luis de Florez graduated from the Massachusetts Institute of Technology (MIT) in 1911 before joining the navy.
During World War I he became a naval aviator.
Commander de Flores is credited with numerous inventions which made better flight simulators and equipment for flight safety.

Lieutenant Frederick Lois Riefkohl (1889–1969), a native of Maunabo, Puerto Rico, became the first Puerto Rican to graduate from the USNA, and served as commander of the armed guard of USS Philadelphia.
On August 2, 1917, after engaging an enemy submarine, he was awarded the Navy Cross, the second highest medal that can be awarded by the U.S. Navy.

George E. Fernandez, a water tender (a first-class petty officer in charge in a fireroom) aboard the destroyer USS Shaw, was awarded the Navy Cross on October 9, 1918, after his actions aboard USS Shaw on October 9, 1918, when Shaw collided with RMS Aquitania and was cut in two and set on fire.
Fernandez threw the ammunition that was piled on the deck of Shaw overboard, saving the lives of many of his fellow crewmen.
On April 6, 1917, the U.S. Congress declared war on Germany and officially entered World War I. At the time, soldiers and sailors with Spanish surnames or Spanish accents were sometimes the objects of ridicule and relegated to menial jobs. However, Hispanics continued to join the military and serve their nation.
Captain Robert F. Lopez retired from the navy in 1911. During World War I, he was recalled to active duty and given the rank of commodore (equivalent to a one-star admiral rank, typically used during wartime) to command the Mare Island Naval Shipyard.
Luis de Florez graduated from the Massachusetts Institute of Technology (MIT) in 1911 before joining the navy. During World War I he became a naval aviator. Commander de Flores is credited with numerous inventions which made better flight simulators and equipment for flight safety.
Lieutenant Frederick Lois Riefkohl (1889–1969), a native of Maunabo, Puerto Rico, became the first Puerto Rican to graduate from the USNA, and served as commander of the armed guard of USS Philadelphia. On August 2, 1917, after engaging an enemy submarine, he was awarded the Navy Cross, the second highest medal that can be awarded by the U.S. Navy.
George E. Fernandez, a water tender (a first-class petty officer in charge in a fireroom) aboard the destroyer USS Shaw, was awarded the Navy Cross on October 9, 1918, after his actions aboard USS Shaw on October 9, 1918, when Shaw collided with RMS Aquitania and was cut in two and set on fire. Fernandez threw the ammunition that was piled on the deck of Shaw overboard, saving the lives of many of his fellow crewmen.
Hispanics in the United States Navy