The Long Blue Line: Juan del Castillo – Coast Guard officer and humanitarian

Juan del Castillo was a Coast Guardsman who distinguished himself in the service and in civilian life. From becoming the first Coast Guardsmen of Hispanic heritage to complete Reserve Officer Training, now known as Officer Candidate School, to inventing the formula for Corn Soy Milk, considered one of the most important high protein foods ever developed, del Castillo dedicated his life to helping others.


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History – CDR Juan del Castillo: Officer, Humanitarian and Self-Made Scientist

In recognition of National Hispanic Heritage Month, this month’s history post is in honor of Commander Juan del Castillo, the Coast Guard’s first officer of Hispanic American heritage. This story has a wonderful ending as a family tradition to serve […]