Hagåtña, Guam
Flores was born on August 12, 1900, in Hagåtña, Guam, and received all of his education on the island. As a teenager, Flores worked for the United States Navy government in Guam as a messenger, and an operator at the Naval cable station. During World War I, Flores enlisted in the Navy, though he never saw combat. After leaving the Navy, Flores moved to San Francisco and married his wife Angela.