Edmundo Amoros Isasi was born on January 30th, 1930 in La Habana, Cuba. He was the youngest of six children born to Guillermo Amoros and Caridi Isasi. Guillermo, who labored in the sugar fields, died when his little boy was only 3. Caridi supported her family by working in a textile mill. Young Edmundo attended school for 8 years, but he too went to work in the mill when he was 14 1/2.
The small but speedy youth played baseball from an early age; he was already talented enough to hold his own with older players in Mantanzas.